The standards and research the parade is aligned and documented to.

Hetland & Winner (2004)

Arts (caveat)

Many arts-to-academics transfer claims are not supported by rigorous evidence; also the source for structured art critique / studio-habits vocabulary.

Robinson, A. Helene (2013) · Disadvantaged K-12 populations

Arts integration

Arts integration with disadvantaged populations showed positive and potentially positive effects; drama integration clearest; multi-arts cautiously evidence-based for reading achievement.

Used in:Academic bank (99 classroom activities)

Falk & Dierking (1992, 2000) · All ages

Informal learning

Learning in informal settings is shaped by personal, social, and physical contexts; free-choice learning drives repeat engagement.

Used in:Doodle Passport (come-back loop)Book Connections / book tastingAcademic bank (99 classroom activities)

Falk & Storksdieck (2005) · Museum visitors

Informal learning

Empirical validation of the Contextual Model of Learning.

Used in:Doodle Passport (come-back loop)

Black & Wiliam (1998) · School-age

Retry mechanism

Formative assessment -- low-stakes attempts with feedback, then another try -- produces learning-gain effect sizes of roughly 0.4 to 0.7, strongest for lower-achieving children.

Used in:Color & Create (the core act)Academic bank (99 classroom activities)

Bjork & Bjork (2011)

Retry mechanism

Desirable difficulties: effortful, repeated practice produces more durable learning than easy, massed practice.

Peterson et al. (2025) · Children

Retry mechanism

How adults respond to children's mistakes predicts children's fear of failure.

Norton, Mochon & Ariely (2012) · Adults

Creation premium

People value what they create more than equivalent pre-made objects (the IKEA effect).

Used in:Be Yourself / All-About-Me

Marsh, Kanngiesser & Hood (2018) · By age 5

Creation premium

The IKEA effect is confirmed in children by age 5.

Kanngiesser, Gjersoe & Hood (2010) · Preschoolers

Creation premium

Creative labor transfers ownership in preschoolers.

Goldstand, Koslowe & Parush (2005) · School-age

Visual-motor

Visual-motor integration and visual perception discriminated good from poor academic performers.

Parush, Yochman, et al. (2002) · School-age

Visual-motor

Handwriting difficulties linked to underlying visual-motor and perceptual deficits.

Askvik, van der Weel & van der Meer (2020) · Age 12 + adults

Handwriting / brain

Handwriting and drawing, but not keyboard typing, produced brain-connectivity patterns associated with learning and memory.

Van der Weel & van der Meer (2024) · Adults only

Handwriting / brain

Follow-up strengthening the handwriting-vs-typing connectivity finding.

Soska, Adolph & Johnson (2010) · Infants

3D advantage

Manipulating a 3D object causally builds perceptual knowledge that looking at a flat image does not.

Ziemer, Plumert, et al. (2021) · Infants

3D advantage

Infants probe flat screens for 3D affordances because the brain expects objects to be three-dimensional.

Rose, Gottfried & Bridger (1983) · 12 months

Touch-vision bridge

Twelve-month-olds visually recognized a 3D object, including its 2D picture, after tactile familiarization.

Lacey & Sathian (2011)

Touch-vision bridge

The lateral occipital complex is a convergence zone where touch and vision share a representational format.

Meltzoff (2013) · Infants

Observational learning

Infants build motor representations by watching adults act on objects months before they can perform the actions.

Rogoff (1990) · Children

Observational learning

Guided participation: children learn through scaffolded shared activity with a more capable partner.

Vygotsky (1978) · Children

Observational learning

Zone of Proximal Development: the gap between what a child can do alone and with guidance is where learning happens.

Gelman, Manczak & Noles (2016) · Age 3

Creation premium

Three-year-olds preferred their own worn toys over new replacements, but only for anthropomorphized toys.

DeJesus, et al. (2022) · Ages 4-12

Creation premium

Children expected others to also prefer handmade over factory-made items.

Diesendruck & Perez (2015) · Children

Creation premium

Children extend their sense of self to owned objects.

Nucci & Weber (1995) · From age 3

Chromatic agency

Children as young as 3 treat personal choices, including color choice, as their own territory and resist adult override.

Stern-Ellran, et al. (2016) · Children

Chromatic agency

White play surfaces support focus better than pre-colored ones.

Bosgraaf, et al. (2020) · Children

Chromatic agency

Flexible material choice is associated with positive therapeutic outcomes.

Winstein, Pohl & Lewthwaite (1994)

Retry mechanism

Faded physical guidance -- helping less over time -- outperformed constant guidance for motor-skill retention and transfer.

Marsh, Cumming, Randolph & Michaels (2021) · General + special ed

Response boards

With response cards (write-on hold-up boards), students showed quiz-achievement and participation increases and less off-task behavior.

Gardner, Heward & Grossi (1994) · Grade 5

Response boards

Quiz and participation gains under response cards versus hand-raising.

Aydos & Ozet (2025) · Preschool

Chromatic agency

Colour-emotion associations in children's drawings were highly individualised, though some general patterns were observed.

Wammes, Meade & Fernandes (2016)

Drawing & learning

Drawing to-be-remembered information produced reliably better recall than writing it -- 'the drawing effect' integrates semantic, visual, and motor traces.

Used in:Color & Create (the core act)Academic bank (99 classroom activities)

Hardiman, Rinne & Yarmolinskaya (2014) · Grade 5

Arts integration

Arts-integrated science units produced significantly better delayed-test retention than conventional teaching.

Used in:Academic bank (99 classroom activities)

Ainsworth, Prain & Tytler (2011) · Students

Drawing & learning

Drawing is a distinct way to learn -- it makes students represent, reason about, and integrate ideas.

Used in:Academic bank (99 classroom activities)

Paivio (dual coding) & Mayer (multimedia learning)

Drawing & learning

People learn more from well-matched words and pictures than from words alone.

Garaigordobil (2022) · Ages 4-12

Cooperative play

Cooperative-creative play produced medium-to-large gains in prosocial leadership, helping behaviors, social sensitivity, emotional stability, and creativity.

Used in:Wipe-Away BullyingSo KindCompliment Doodle / Gratitude DoodleWipe Away Bullying Staff Lab

Gungordu et al. (2025) · Preschool

Cooperative play

Empathy and creativity ground prosocial behavior in preschoolers; creativity in collaborative settings produced stronger prosocial gains than creativity alone.

Troy (2023) · Young children

Cooperative play

Collaborative artmaking with young children supports co-existence, cooperative play, and conflict resolution.

Van Ryzin, Roseth, et al. (2020) · Middle school

Cooperative play

Cooperative learning produced significant prosocial-behavior gains mediated by peer bonding and belonging.

Used in:Wipe-Away BullyingSo KindStory SwappingColor & Create (the core act)Wipe Away Bullying Staff Lab

Segundo-Marcos et al. (2023) · Ages 10-12 (peak)

Cooperative play

Cooperative-learning gains in creative thinking are most pronounced at ages 10 to 12.

Used in:Story Swapping

Villardon-Gallego et al. (2018) · School-age

Cooperative play

Cooperative learning produced significant prosocial gains at large effect sizes.

Goldstein & Lerner (2018) · Preschool

Pretend play

Dramatic pretend play improved children's emotional self-control.

Used in:Worry Doodle / calm corner

Thibodeau et al. (2016) · Preschool

Pretend play

Fantastical pretend play built inhibitory control and cognitive flexibility.

Used in:Worry Doodle / calm corner

Hashmi, Vanderwert, et al. (2020) · Young children

Character play

Solo play with character toys activated the brain's social-thinking region (pSTS) at a rate comparable to partner play; tablet use did not.

Ohl et al. (2013) · Kindergarten

Fine motor

A Tier-1 kindergarten fine-motor intervention produced gains while control skills declined.

Used in:Color & Create (the core act)

Birrell et al. (2024) · Ages 0-6

Early childhood

All nine included studies reported positive wellbeing outcomes from arts-inclusive programs for ages 0-6.

Used in:So KindDoodle Mood / mood-meter check-inTake-Home Doodle ChallengesRead-to-the-Doodle / Reading TimeStorytime DoodleDoodle Selfies / overnight mischiefHide & Seek / scavenger hunts

Nicolopoulou et al. (2015) · Low-income preschoolers

Early literacy

Narrative- and play-based story-and-act activity drove oral language, emergent literacy, and social competence.

Used in:Story SwappingRead-to-the-Doodle / Reading TimeStorytime DoodleSpeech Bubbles / Pen Pal Pets / Doodle TextingThe Doodle's Adventure (narrative writing)Book Connections / book tastingAcademic bank (99 classroom activities)

Puranik & Lonigan (2011, 2014) · From age 2

Early literacy

Emergent writing and mark-making develop from age 2; print carries meaning.

Used in:Story SwappingStorytime DoodleColor & Create (the core act)Speech Bubbles / Pen Pal Pets / Doodle TextingThe Doodle's Adventure (narrative writing)Academic bank (99 classroom activities)

Huang, Wang, et al. (2024) · Ages 3-5+

Developmental indicator

Coloring follows three documented developmental stages (immature at 3, transitional 4-5, mature after 5) and discriminated typical development from delay.

Used in:Color & Create (the core act)

Yakimishyn & Magill-Evans (2002) · 23 months

Fine motor / toddler

A short wax crayon used on a vertical surface produced more mature grasp patterns at 23 months; the effect did not appear for pencils or markers.

Used in:Color & Create (the core act)

AJOT vertical-surface literature (2018) · Children

Fine motor

Vertical-surface work builds wrist extension, shoulder stability, and core strength that flat-table work misses.

Used in:Color & Create (the core act)

Verdine et al. (2014) · Young children

Spatial-math

Spatial skills predict a meaningful share of mathematics performance.

Used in:Doodle GoodColor & Create (the core act)Academic bank (99 classroom activities)

Hawes et al. (2017) · Children

Spatial-math

Drawing-inclusive spatial training improved numeracy outcomes.

Used in:Doodle GoodColor & Create (the core act)Academic bank (99 classroom activities)

Resnick & Lowrie (2023) · Preschool

Spatial-math

Play-based spatial training causally improved preschool numeracy.

Philip, Buckley, Hartman, et al. (2023) · School entry

Fine motor

Drawing precision at school entry predicted handwriting performance, explaining roughly 44% of variance. The single most-cited statistic in the DoodleFace consumer library.

Malanchini, Tosto, Garfield, et al. (2016) · Age 4.5 -> 12

Fine motor / math

Drawing ability at 4.5 predicted teacher-rated mathematics at 12 (~12.3% of variance). Largely explained by shared genetic/environmental factors; link absent for formal online math tests.

Cameron, Brock, Murrah, et al. (2012) · Kindergarten

Fine motor

Fine motor skills and executive function both contribute to kindergarten achievement.

Grissmer, Grimm, Aiyer, et al. (2010) · Early elementary

Fine motor

Fine motor skills and attention are strong predictors of later achievement, in some analyses stronger than early reading or math.

Marr, Cermak, et al. (2003) · Elementary

Fine motor

Handwriting and fine-motor tasks occupy a large share of the elementary school day.

McHale & Cermak (1992) · Elementary

Fine motor

Fine-motor activity occupies an estimated 30 to 60 percent of the elementary school day, much of it paper-and-pencil.

Streri & Gentaz (2003) · Newborns

Infant pathway

Newborns visually recognized a shape they had only held -- touch-to-vision transfer from day one.

Sann & Streri (2007) · Birth-5 months

Infant pathway

Touch-to-vision transfer present at birth; vision-to-touch absent until ~5 months -- the hand leads early.

Lejeune, Audeoud, et al. (2012) · 33 weeks gestation

Infant pathway

Inter-manual shape transfer present at 33 weeks gestation -- hands learning shape before birth.

Rochat (1989) · From 2 months

Infant pathway

Manual exploration is purposive from two months.

Elgohary, et al. (2017) · 3 months

Infant vision

Infants at three months need roughly 20x more visual contrast than adults.

Fantz (1963) · Infants

Infant vision

Infants prefer and attend to high-contrast patterned stimuli.

Needham, et al. (2017) · Pre-reaching infants

Graspability

Simulated grasping experience enhanced infant object exploration and engagement (~40% reaching enhancement in follow-up work).

Lockman & Tamis-LeMonda (2021) · Birth-school

Grows-with-child

The same object affords different developmental behaviors as a child grows -- grasping, mark-making, pretend play, creative ownership.

Smirnova (2011) · Ages 5-5.5

Open-ended play

Preset electronic toys did not elicit the imaginative, self-directed play that open-ended toys produced.

Nicholson (1972) · Children

Open-ended play

Open-ended materials drive the richest, most inventive play.

Knaier, et al. (2022) · Children

Left-handed

No inherent performance difference between left- and right-handed children -- the difference is the tool, not the hand.

Left-Handers Club survey (2006) · Left-handed children

Left-handed

A large majority of left-handed children smudge their work; very few were taught a preventing technique.

Johnston, et al. (2009) · Population

Left-handed

Roughly 10% handedness prevalence -- the source behind the left-handed market-size line.

Learning Without Tears (2020)

Left-handed

A left hand trailing across wet ink smears it.

James & Engelhardt (2012); James (2017) · Ages 4-5

Early literacy / brain

Practicing letters by hand activated the reading network far more than typing or tracing; variable hand-produced output helps build letter recognition.

Used in:Academic bank (99 classroom activities)

Bratton, Ray, Rhine & Jones (2005) · Children

Play therapy

Play therapy produced a large overall effect (0.80 SD).

Used in:Worry Doodle / calm corner

Lin & Bratton (2015) · Children

Play therapy

Moderate 0.47 overall effect for child-centered play therapy.

Ray et al. (2015) · Elementary

Play therapy

School-delivered child-centered play therapy reduced externalizing (d=0.34) and internalizing (d=0.21) problems and raised academics (d=0.36).

Used in:Worry Doodle / calm corner

Mol, Bus, de Jong & Smeets (2008) · Early childhood

Dialogic reading

Dialogic (interactive) shared reading produced a moderate expressive-vocabulary boost (d~0.59).

Used in:Read-to-the-Doodle / Reading TimeStorytime Doodle

Dowdall et al. (2020) · Early childhood

Dialogic reading

Confirmed dialogic-reading gains (expressive d=0.41, receptive d=0.26).

Used in:Read-to-the-Doodle / Reading TimeStorytime Doodle

Whitehurst et al. (1988) · Early childhood

Dialogic reading

The foundational dialogic-reading experiment behind the CROWD-prompt method.

Used in:Read-to-the-Doodle / Reading TimeStorytime Doodle

Yogman et al. (2018) · Young children

Play

Play is a primary way young children build executive-function and self-regulation skills.

Diamond & Lee (2011) · Ages 4-12

Executive function

Play-based and other programs improve executive-function skills, often most for the highest-need children.

Bers, Strawhacker & Vizner (2018) · Early childhood

Library / EC

Reggio-Emilia-inspired early-childhood makerspaces in libraries.

Lotts (2017) · All ages

Library

Coloring is a named library art-programming activity.

Used in:Parade Gallery & Upload (Memento)

ALSC / Alberts (2019) · Toddlers / preschoolers

Library

Library art activities for toddlers and preschoolers support fine motor, gross motor, and social skills.

Used in:Take-Home Doodle ChallengesRead-to-the-Doodle / Reading TimeStorytime Doodle

Guthrie, Wigfield et al. (CORI program) · Elementary

Reading motivation

Intrinsic reading motivation predicts reading achievement and volume; extrinsic motivation is a non-significant or negative predictor; autonomy-supportive instruction raises both motivation and comprehension.

Used in:Doodle Passport (come-back loop)

Mol & Bus (2011) · Preschool-HS

Reading volume

Print exposure correlates moderately-to-strongly with comprehension and spelling, explaining a rising share of language ability (12% preschool to 30%+ HS) in an upward spiral.

Used in:Read-to-the-Doodle / Reading TimeBook Connections / book tasting

Durlak et al. (2011) · School-age (K-12)

SEL

Students in school-based SEL programs gained an 11-percentile-point academic advantage, plus improved skills, attitudes, and behavior.

Used in:Doodle GoodDoodle Mood / mood-meter check-inWorry Doodle / calm cornerSchool-Wide Parade Challenges

Cipriano et al. (2023) · School-age

SEL / Climate

Universal school-based SEL programs improved SEL skills, attitudes, behavior, school climate, peer relationships, and academic achievement.

Used in:Wipe-Away BullyingSo KindBe Yourself / All-About-MeCompliment Doodle / Gratitude DoodleSchool-Wide Parade ChallengesWipe Away Bullying Staff Lab

Farrington et al. (2019) · School-age

Arts-SEL bridge

Arts education develops SEL outcomes through identity development, creative agency, collaborative meaning-making, and community belonging, mapping to all five SEL competency domains.

Used in:So KindDoodle Mood / mood-meter check-inBe Yourself / All-About-MeSchool-Wide Parade Challenges

CPSTF / StopBullying.gov (2022) · School-age

Anti-bullying

Systematic-review evidence base for school anti-bullying program effectiveness.

Used in:Wipe-Away BullyingSo KindDoodle GoodSchool-Wide Parade ChallengesWipe Away Bullying Staff Lab

Lodi et al. (2021) · Ages 6-18

Anti-bullying

Review of restorative-practice approaches in schools.

Used in:Wipe-Away BullyingWipe Away Bullying Staff Lab

Van de Vyver et al. (2019) · Ages ~5-10

Kindness / arts

A participatory kindness-themed arts intervention increased interpersonal prosocial intentions, including toward outgroup members, with effects persisting six months.

Used in:So KindCompliment Doodle / Gratitude Doodle

Tarr et al. (2015)

Shared experience

Synchrony and shared experience raise social bonding.

Used in:School-Wide Parade Challenges

Dunbar et al. (2012)

Shared experience

Shared experience raises social bonding.

Used in:School-Wide Parade Challenges

Richert, Robb & Smith (2011); Calvert et al. (2014-2017); Lauricella et al. (2011) · Young children

Character bond

Children form parasocial bonds with characters and learn better from a character they know and feel close to.

CDC School Connectedness · Students

Belonging

Connected students have higher grades, attendance, and graduation and lower emotional distress, with protective effects into adulthood.

Used in:School-Wide Parade Challenges

Rose et al. (2024) · Students

Belonging

School connectedness is protective across mental-health and behavioral domains, strongest for students of color.

Used in:School-Wide Parade Challenges

Allen et al. (2018) · Students

Belonging

Meta-analytic support for school belonging's protective role.

Roseth, Johnson & Johnson (2008); Johnson & Johnson; Slavin · Students

Cooperative learning

Cooperative goal structures produce higher achievement than competition or solo work, and better peer relationships including across ability lines.

Layous, Nelson, Oberle, Schonert-Reichl & Lyubomirsky (2012) · Ages 9-11

Kindness

Children who performed three acts of kindness a week for four weeks gained significantly more peer acceptance than a comparison group.

Used in:So KindCompliment Doodle / Gratitude Doodle

Froh and colleagues (2008-2014); Bono & Froh · Youth

Gratitude

Gratitude in young people links to life satisfaction, prosocial behavior, and social integration; gratitude activities raised optimism and positive emotion.

Used in:Compliment Doodle / Gratitude Doodle

Celio, Durlak & Dymnicki (2011) · Students

Service-learning

Service-learning produced significant gains in attitudes, civic engagement, social skills, and academics (~0.27-0.43), strongest with student voice and reflection.

Self-regulation-at-age-4 meta-analysis · Age 4 onward

Self-regulation

Self-regulation at age 4 predicts later school competency, engagement, and academic performance.

Beery-Buktenica VMI (6th ed.) · 12 months+

Clinical standard

The standard clinical instrument for visual-motor integration, with normed stepping stones from co-active coloring (12-24 mo) through scaffolded (2-3 yrs) to independent coloring.

AAP Bright Futures · Well-child visits

Clinical standard

The AAP's developmental-surveillance system; basis for 'pediatricians check coloring/milestones at every visit' claims.

Ghoneim, et al. (2024) · Children with motor differences

Inclusive / OT

Vertical- versus horizontal-surface work for children with motor differences, including cerebral palsy.

Loreskar & Binder (2024) · Ages 4-12 (hospitalized)

Clinical

A beeswax-crayon art-therapy intervention helped seriously ill children connect with a healthy inner self.

Litwin, et al. (2023) · Pediatric patients

Clinical

Environmental control is a first-order design theme for pediatric clinical spaces -- control supports coping.

Robinson, E.M., Baker & Hossain (2018) · Parents (pediatric surgical waiting area)

Clinical / anxiety

Coloring for 30 minutes reduced anxiety significantly more than waiting alone (p<0.0001) in a pediatric surgical waiting area.

Mandala coloring post-op maternal RCT (2025) · Caregivers (post-surgery)

Clinical / anxiety

Mandala coloring 30 min/day for three days after children's surgery decreased maternal anxiety (STAI) versus standard care.

Mofid Children's Hospital preoperative RCTs · School-age; ages 6-18

Clinical / anxiety

Mandala coloring reduced preoperative anxiety versus routine care; three-arm trial compared mandala, Lego play, and control.

TICK-B procedural pain/fear trials · Children

Clinical / pain

Trace-image-and-coloring activity during needle procedures reduced children's pain and fear versus passive distraction and control.

Coloring across care environments pilot (2024) · Ambulatory patients

Clinical / anxiety

Coloring decreased patient anxiety across three ambulatory care settings.

Ayres (1972)

Clinical standard

The foundational sensory-integration text behind the press-hard clinical practice citation.

CDC Developmental Milestones (rev. 2022) · 0-5

Clinical standard

The substantive milestone revision was February 2022; later page dates reflect web maintenance only.

Kaimal, Ray & Muniz (2016) · Adults

Calming

45 minutes of open art-making lowered cortisol in ~75% of participants regardless of art experience.

Used in:Doodle Mood / mood-meter check-inWorry Doodle / calm corner

Curry & Kasser (2005) · Adults

Calming

Structured coloring lowered anxiety versus free coloring in the seminal study.

Carsley, Heath & Fajnerova (2015) · Children

Calming

A classroom mindfulness-coloring activity reduced test anxiety in children.

Coloring meta-analysis (2021)

Calming (caveat)

Coloring did not significantly beat free drawing -- the durable claim is that art-making is a low-barrier calming/expressive practice, not a clinical anxiety treatment.

Gross & Hayne (1998) · Young children

Externalization

Children who drew while recounting an emotional experience reported substantially more information than children who only talked.

Used in:Doodle Mood / mood-meter check-inWorry Doodle / calm corner

White & Epston (1990)

Externalization

Narrative therapy's externalization: the person is not the problem; the problem is the problem -- put the worry on a character and face it from a safe distance.

Used in:Worry Doodle / calm corner

Montgomery & Maunders (2015); Heath et al. (2017) · Children

Bibliotherapy

Creative bibliotherapy has theoretical grounding and some randomized support; the controlled base is still small.

CAST UDL Guidelines; Capp (2017) and subsequent reviews

UDL

UDL is the inclusive-design framework named in ESSA; its building blocks rest on solid sub-literatures, but UDL's own outcome evidence is still emerging and uneven.

Marques, Gallagher & Lopez (2017); Day et al. (2010) · K-12 strongest

Hope

Hope has a moderate positive relationship with achievement and predicts grades above intelligence and prior performance.

Pennebaker; Frattaroli (2006)

Expressive disclosure

Expressive writing about emotional experiences produces small but real wellbeing benefits (~d=0.16), larger for those processing stress.

Travagin, Margola & Revenson (2015) · Adolescents

Expressive disclosure

Small, variable expressive-writing effects in adolescents -- a cost-effective tool, claimed modestly.

Stamkou et al. (2023) · Ages 8+

Awe

Awe-eliciting art sparked prosocial behavior in children aged 8 and older.

Epstein et al. (2018)

Family engagement

The school-family-community partnership framework underwriting the program's display-and-share community step.

Used in:Take-Home Doodle Challenges

Killeen, Evans & Danko (2003) · Students

Ownership

Permanent child-authored artwork builds ownership and belonging; the mechanism is authorship, not the building type.

Used in:Be Yourself / All-About-MeColor & Create (the core act)Parade Gallery & Upload (Memento)

Ambuehl et al. (2022)

Ownership

Collective psychological ownership develops through participation.

Used in:Parade Gallery & Upload (Memento)

Preston & Gelman (2020)

Ownership

Psychological ownership is more behaviorally powerful than legal ownership.

Used in:Parade Gallery & Upload (Memento)

Ryan & Deci (2000)

Motivation

Autonomy, competence, and relatedness are the needs that drive motivation.

Used in:Doodle Good

Lee & Brand (2005) · Adults (workplace)

Autonomy

Personal control over one's environment is associated with wellbeing and satisfaction.

Contzen & Marks (2018)

Ownership

Collective psychological ownership develops through participation.

Lepper, Greene & Nisbett (1973); Greene & Lepper (1974) · Preschool

Intrinsic motivation

Preschoolers who expected a reward for drawing later drew about half as much in free time, and worse -- the overjustification effect, sharpest for already-enjoyed activities.

Used in:Doodle Good

Deci, Koestner & Ryan (1999) · Strongest in children

Intrinsic motivation

Tangible rewards reliably and substantially undermine intrinsic motivation, most pronounced in children; use reward-based systems with great care.

Used in:Doodle Good

Su & Reeve (2011); Reeve & Cheon (2021) · Students

Autonomy

Autonomy-supportive teaching raises engagement, initiative, and achievement; the skills are learnable and durable.

Used in:Doodle Good

Gruber, Gelman & Ranganath (2014); Fandakova & Gruber (2021) · Incl. children/adolescents

Curiosity

Sparked curiosity engages the dopamine system and hippocampus; people remember the target and incidental information learned in that moment.

Sisk et al. (2018); Yeager et al. (2019) · Students

Growth mindset

Growth-mindset interventions show weak average effects (~d=0.08), with small real gains concentrated among lower-achieving and disadvantaged students.

Falk (2006) · Visitors

Museums

Five visitor identities predict learning outcomes; the Facilitator parent is the program's primary activator.

Falk, Heimlich & Bronnenkant (2008) · Visitors

Museums

Tested the visitor-identity framework with visitor data.

Tan, Gong & Tsang (2021) · Age 4

Museums / EC

Regular hands-on children's-museum activity produced a 14.1 percent gain in cognitive scores.

Andre, Durksen & Volman (2017) · Children

Museums

Scaffolded hands-on activity, narrative, and parent-child interaction are the three highest-impact museum-learning mechanisms.

Willard et al. (2019) · Children + parents

Museums / Family

Hands-on activity produced more productive parent-child talk than passive exhibits.

Pagano et al. (2019) · Children + parents

Museums / Family

Hands-on activity produced more productive parent-child talk than passive exhibits.

McNally et al. (2024) · Visitors

Zoos / aquariums

Zoo and aquarium visits show a small-to-medium positive effect on conservation knowledge, beliefs, and behavior, with no publication-bias evidence.

Moss, Jensen & Gusset (2015-2017) · Visitors

Zoos / aquariums

Measurable biodiversity-learning gains from zoo and aquarium visits.

Falk et al. (2007) · Visitors

Zoos / aquariums

AZA-funded nationwide study of zoo and aquarium learning.

Jensen (2014) · Ages 7-15

Zoos / aquariums

Children assessed via annotated-drawing pre/post questionnaires -- a methodology mirroring the color-and-narrate structure.

Khalil & Ardoin (2011)

Zoos / aquariums

AZA accreditation requires members to develop and measure educational programming -- a documented procurement need.

Smith & Denton (2005) · Teens

Faith communities

Across nearly every measured outcome, more religious teens scored more favorably.

Cheung & Yeung (2011) · Youth

Faith communities

Average weighted correlation between religiosity and constructive conduct, Zr=.213.

Yonker, Schnabelrauch & DeHaan (2012) · Adolescents

Faith communities

Significant associations with lower risk behavior, higher wellbeing and self-esteem.

Putnam (2000, 2015)

Community

Religious congregations are the single most important repository of social capital in America; community/social-capital framework.

Wright et al. (2006, 2014) · Children / youth

Community arts

Community-based arts programs produced gains in confidence, prosocial skills, and conflict resolution that persisted five years.

Used in:Wipe-Away BullyingStory SwappingWipe Away Bullying Staff Lab

Gavron & Mayseless (2018) · Parent-child dyads

Family

Joint parent-child artmaking shifts the relationship toward reciprocity and attunement.

Used in:Take-Home Doodle Challenges

Burke et al. (2021) · Intergenerational

Family

Supporting evidence for intergenerational artmaking effects.

Used in:Take-Home Doodle Challenges

Barrett et al. (2015) -- HEAD Study · Primary

Environment

The physical classroom environment accounted for 16 percent of variance in academic progress; a child's personal imprint (ownership) was a significant parameter.

Used in:Parade Gallery & Upload (Memento)

Maxwell & Chmielewski (2008) · Children

Environment

Environmental personalization was associated with self-esteem gains at large effect sizes (d=.77-1.16).

Fisher, Godwin & Seltman (2014) · Young children

Environment (caveat)

In heavily decorated classrooms, children were more off-task than in sparse classrooms (87 percent; eta-sq=.78).

Godwin et al. (2022) · Young children

Environment (caveat)

The classroom-decoration distraction effect persists for at least 15 weeks without fading.

Rioux et al. (2017)

Place attachment

Creating or modifying a place produces stronger attachment than passively inhabiting it.

Global E-Waste Monitor (2024) + Crayola ColorCycle

Sustainability

62M tonnes of e-waste yearly, ~22% formally recycled; Crayola ended its marker-recycling program citing shipping carbon footprint.

Proshansky & Fabian (1987) · Children

Environment

Place-identity is a substructure of self-identity -- authored spaces become part of who a child is.

Ariccio, et al. (2021)

Place attachment

Place attachment satisfies the same self-determination needs that drive wellbeing.

Yang, et al. (2025)

Place attachment

Place attachment leads to needs satisfaction and then to subjective wellbeing.

Francis et al. (2012)

Place attachment

Participatory placemaking builds place attachment (JEP cluster).

Xu et al. (2022)

Place attachment

Participatory placemaking builds place attachment (JEP cluster).

Anton & Lawrence (2014)

Place attachment

Participatory placemaking builds place attachment (JEP cluster).

Cruwys et al. (2022)

Place attachment

Participatory placemaking builds place attachment (JEP cluster).

Bowen & Kisida (2019) · Grades 3-8

Schools

Arts-integrated education produced significant gains in school engagement, compassion, and writing achievement, higher college aspirations, and reduced disciplinary infractions.

Used in:Wipe-Away BullyingSo KindDoodle GoodDoodle Mood / mood-meter check-inBe Yourself / All-About-MeColor & Create (the core act)School-Wide Parade ChallengesAcademic bank (99 classroom activities)Wipe Away Bullying Staff Lab

Bowen & Kisida (2021) · Low-income students

Schools / Attendance

13 percent reduction in chronic absenteeism among low-income students.

Used in:Wipe-Away BullyingDoodle Passport (come-back loop)School-Wide Parade ChallengesWipe Away Bullying Staff Lab

Castorina, Bradman, et al. (2016)

Safety

Dry-erase markers emit roughly 400 times more volatile organic compounds than washable products; wax crayons emit zero VOCs.

Beck, OTR/L & Hathaway, MOT (clinical advisors)

Practitioner

Clinical practice of deliberately using short crayons (or breaking crayons in half) to force correct finger placement; months spent correcting grips that low-resistance tools allow.

Wiltermuth & Heath (2009)

Ritual / synchrony

People who moved or sang in synchrony cooperated more in later group tasks, even at personal cost.

Used in:School-Wide Parade Challenges

Berkowitz, Moore, Astor & Benbenishty (2017) · Students

Climate

Positive school climate is associated with higher achievement and, in 84% of studies, a narrower income achievement gap.

Used in:School-Wide Parade Challenges

Martzog & Suggate (2022) · Young children

Screens

Screen time, including computer-tablet and LCD-drawing-tablet use, inversely predicted fine-motor skill.

Suggate & Martzog (2021) · Young children

Screens

Tablet use was more damaging to fine-motor development than television.

Hutton, Dudley, Horowitz-Kraus, et al. (2020) · Young children

Screens

Higher screen use associated with lower white-matter integrity in tracts supporting language and self-regulation.

Bakht et al. (2025) · Young children

Screens (honesty)

The screen-time-and-motor literature presents conflicting and inconclusive findings; some negative associations, at least one positive touchscreen correlation.

Lin (2019) · Preschool

Screens

Non-tablet-using preschoolers performed significantly better on fine-motor tasks.

Dhar, Mukhopadhyay, Paul & Mandal (2026) · Ages 1-6

Screens

Screen exposure above two hours/day examined against fine-motor, language, and social outcomes with regression adjustment.

Dadson, Brown & Stagnitti (2020) · Ages 4-7

Screens / bilateral

Screen time was associated with bilateral coordination and visual-motor integration; rich pretend/toy play buffered the association.

AAP digital-media guidance (Jan 2026) · 0-5 focus

Screens / authority

No screens before 18 months (video chat excepted); ~1 hour high-quality content ages 2-5; quality/context over hour-counts.