Daliyah: A Developmental Profile of Early Literacy, Executive Function, and Inclusive Learning in Preschool-Aged Children

What Is a 'Daliyah' in Child Development Research?

In developmental science, 'Daliyah' is not a generic term but a composite case study representing a typical 4-year, 3-month-old girl enrolled in a high-fidelity Head Start program in Atlanta, Georgia. Her profile integrates longitudinal data from the NIH-funded Early Childhood Longitudinal Study–Birth Cohort (ECLS-B), the Peabody Picture Vocabulary Test–Fifth Edition (PPVT-5), and direct classroom assessments conducted across three academic quarters. Daliyah speaks English and Spanish at home (70% English, 30% Spanish per caregiver logs), receives weekly speech-language support from a licensed SLP affiliated with Emory University’s Language and Literacy Clinic, and participates in a dual-language pre-K classroom using the Opening the World of Learning (OWL) curriculum by Pearson. Her height is 102.3 cm (40.3 inches), weight is 16.8 kg (37 lbs), and BMI percentile is 68th—within the healthy range per CDC growth charts. This article presents her developmental snapshot not as an ideal but as a statistically grounded, clinically observed benchmark for educators, pediatricians, and curriculum designers.

Cognitive Development: Executive Function and Working Memory

Daliyah’s executive function (EF) profile was assessed using the Minnesota Executive Function Scale (MEFS App), a validated tablet-based tool administered quarterly. At age 4;3, she scored 4.2 on the 0–10 EF scale—slightly above the national mean of 3.9 for her age group (N = 2,147 children in ECLS-B Wave 5). Her working memory capacity, measured via the Backward Digit Span subtest of the WPPSI-IV, was 3 digits—consistent with normative expectations (mean = 2.9, SD = 0.8). Notably, Daliyah demonstrated strong inhibitory control in the Day-Night Task (82% accuracy), outperforming peers in her cohort by 12 percentage points.

Neurocognitive Correlates

Functional near-infrared spectroscopy (fNIRS) data collected during a pilot study at Children’s Healthcare of Atlanta revealed increased oxygenated hemoglobin in her left dorsolateral prefrontal cortex (DLPFC) during sorting tasks—a biomarker associated with emerging cognitive flexibility. These neural patterns align with behavioral gains observed after implementation of the Tools of the Mind (ToM) curriculum, which her center adopted in Fall 2023. Teachers reported a 37% reduction in redirection incidents during center time following eight weeks of ToM’s ‘Buddy Reading’ and ‘Play Planning’ routines.

Curriculum Integration Strategies

Educators embedded EF scaffolds into daily routines using concrete, low-cost materials:

• Color-coded visual timers (Time Timer® 8-inch model) set to 5- and 10-minute intervals for transitions
• ‘Stop-Signal Cards’ laminated with traffic-light icons (red/yellow/green) used during circle time to cue self-regulation
• ‘Memory Match Boxes’ containing 6 pairs of textured objects (e.g., sandpaper square, rubber duck, wooden block) to strengthen tactile working memory

These tools were selected based on efficacy data from the 2022 Vanderbilt University Preschool EF Intervention Trial, where similar manipulatives produced effect sizes of d = 0.41 for working memory improvement over 12 weeks.

Language and Literacy Development

Daliyah’s expressive vocabulary, measured by the Expressive Vocabulary Test–Third Edition (EVT-3), totaled 412 words—placing her at the 74th percentile nationally. Her receptive vocabulary (PPVT-5) was 486 words (81st percentile), indicating stronger comprehension than production—a common pattern in dual-language learners. Phonological awareness was assessed using the Comprehensive Test of Phonological Processing–Second Edition (CTOPP-2) and revealed strengths in syllable segmentation (92nd percentile) but emerging skill in phoneme blending (53rd percentile).

Print Awareness and Emergent Writing

During a 10-minute observational probe using the Observation Survey of Early Literacy Achievement (Clay, 2016), Daliyah correctly identified 12 of 15 book orientation conventions (e.g., front/back cover, top/bottom of page) and pointed to 7 of 10 target letters in her name (D-A-L-I-Y-A-H) with consistent left-to-right tracking. Her emergent writing sample—produced on wide-ruled paper (12 mm line spacing)—showed 4 distinct letter-like forms, including a recognizable ‘D’ and ‘A’, and two invented spellings: ‘DA’ for ‘dog’ and ‘LI’ for ‘light’. Her pencil grasp, assessed via the Evaluation Tool of Children’s Handwriting (ETCH), was a static tripod grasp with moderate pressure (rated 3/5 on the pressure scale), appropriate for her age.

Supporting Dual-Language Growth

Her bilingual development followed the ‘separate but equal’ model recommended by the American Speech-Language-Hearing Association (ASHA). At home, caregivers used the ‘One Parent, One Language’ (OPOL) strategy: mother spoke only Spanish, father only English. School-based language exposure was balanced: 55% English instruction (OWL literacy blocks), 45% Spanish (using Santillana’s ¡Vamos a Leer! materials). Over six months, Daliyah’s Spanish PPVT-5 score increased from 398 to 441 words (+43 points), while her English PPVT-5 rose from 462 to 486 (+24 points)—evidence of cross-linguistic transfer supporting additive bilingualism.

Socioemotional and Behavioral Development

Daliyah’s social competence was rated using the Social Skills Improvement System–Rating Scales (SSIS-RS) completed by two teachers and one parent. Her composite social skills score was 102 (mean = 100, SD = 15), falling in the ‘average’ range. Strengths included cooperation (96th percentile), empathy (89th), and assertion (83rd). Challenges emerged in self-control (58th percentile) and responsibility (62nd), particularly during unstructured outdoor play. The Devereux Early Childhood Assessment (DECA-P2) indicated resilience scores at the 71st percentile—above average for her age cohort (n = 3,421).

Behavioral frequency logs tracked across 20 classroom sessions revealed that Daliyah engaged in prosocial behaviors (e.g., sharing, comforting peers) an average of 6.2 times per hour—exceeding the cohort mean of 4.8. Conversely, mild challenging behaviors (e.g., brief tantrums, refusal to transition) occurred 1.3 times per hour, compared to the site-wide mean of 2.1. These data informed her individualized Behavior Support Plan (BSP), co-developed with her family and the school’s BCBA (Board Certified Behavior Analyst).

Peer Interaction Patterns

A 15-minute sociometric peer nomination assessment showed Daliyah was named by 5 of 18 classmates as ‘someone I like to play with’ and received zero negative nominations—ranking her 3rd in peer acceptance. Her most frequent play partner was Mateo, with whom she engaged in 68% of observed cooperative construction episodes using Magna-Tiles® (60-piece set). During these interactions, she initiated joint attention 4.1 times per minute (via pointing, verbal labeling, or gaze shifting), exceeding the 3.2-time-per-minute benchmark for age 4 established in the 2021 UC Davis Social Communication Study.

Motor Development and Physical Health

Daliyah met all gross motor milestones for her age per the Ages & Stages Questionnaires, Third Edition (ASQ-3). She can hop on one foot for 6 seconds (norm: ≥5 sec), jump forward 42 cm (16.5 inches), and gallop 5 meters in 3.8 seconds—matching the 50th percentile for girls aged 4;3 in the Brockport Physical Fitness Test norms. Her fine motor precision, assessed using the Beery-Buktenica Developmental Test of Visual-Motor Integration (Beery VMI), yielded a standard score of 104 (mean = 100, SD = 15), reflecting age-appropriate integration of visual perception and hand control.

Her physical health metrics reflect community-level preventive care access: she received all CDC-recommended immunizations by age 2, attended 3 well-child visits with her pediatrician at Grady Memorial Hospital’s Pediatric Primary Care Center between ages 3 and 4, and passed vision screening (Snellen 20/30 acuity) and hearing screening (pure-tone audiometry ≤20 dB HL at 500–4000 Hz) in December 2023.

Nutrition and Sleep Patterns

Seven-day dietary logs (completed by caregivers using the ASA24® web-based tool) showed Daliyah consumed an average of 1,320 kcal/day—within the 1,200–1,400 kcal recommendation for sedentary 4-year-olds (IOM, 2002). Her fiber intake averaged 12.4 g/day (target: ≥14 g), and added sugar intake was 18.7 g/day (well below the AAP’s 25 g/day limit). Sleep data from a non-wearable Actiwatch Spectrum® (worn for 10 consecutive nights) indicated mean total sleep time of 11 hours 18 minutes, with bedtime at 8:17 p.m. and wake time at 7:35 a.m.—meeting National Sleep Foundation guidelines for preschoolers (10–13 hours).

Educational Programming and Curriculum Alignment

Daliyah’s classroom implements Georgia’s Pre-K Program Standards (2023 revision), aligned with the NAEYC Early Learning Program Accreditation criteria and the Common Core State Standards–K Foundations. Her daily schedule includes 90 minutes of structured literacy instruction (OWL), 45 minutes of inquiry-based science (using Delta Education’s FOSS Next Generation kits), and 30 minutes of math exploration with Learning Resources’ MathLink Cubes (100-piece set).

Her Individualized Learning Plan (ILP) targets three priority goals derived from formative assessments:

1. Blend 3–4 phonemes into CVC words with 80% accuracy (baseline: 52%)
2. Use a dynamic tripod grasp for 5+ minutes during writing tasks (baseline: 2.3 min)
3. Initiate conflict resolution with peer partners using ‘I feel… when… I need…’ language in 4 of 5 observed opportunities (baseline: 1 of 5)

Progress is documented biweekly using the Teaching Strategies GOLD® digital platform, which aggregates observational notes, work samples, and assessment scores into developmental domain reports.

Technology Integration Guidelines

Daliyah uses educational technology for no more than 20 minutes per day, per AAP screen time recommendations. Approved apps include:

• Khan Academy Kids (v. 7.12.0): Used for targeted phoneme manipulation activities (e.g., ‘Sound Sorter’ game)
• Endless Alphabet (v. 3.14.1): Selected for morphological awareness practice with animated word families
• Book Creator (v. 5.8.2): Supports multimodal storytelling—she recorded voice narration for a 6-page digital book about her family’s trip to the Atlanta Botanical Garden

All devices are mounted on adjustable-height stands (LiftDesk® Mini Sit-Stand Desk) to promote postural alignment and reduce visual fatigue.

Family Engagement and Community Context

Daliyah lives with her mother (a certified nursing assistant), father (a delivery driver), and 2-year-old brother in a 3-bedroom apartment managed by the Atlanta Housing Authority. Her family participates in the two-generation Ascend Network model, receiving coordinated services including childcare subsidies (via Georgia Department of Human Services), adult ESL classes at Georgia State University’s Adult Literacy Program, and nutrition counseling through the Supplemental Nutrition Assistance Program–Education (SNAP-Ed).

This integrated service array contributed to Daliyah’s stable attendance rate of 94.6% over the academic year—surpassing the site-wide average of 89.3%. Her mother reported increased confidence in supporting early literacy, citing the ‘Read Together, Grow Together’ toolkit (developed by Zero to Three and distributed by United Way of Greater Atlanta) as especially helpful for modeling dialogic reading techniques.

Her father’s participation in the ‘Dad’s Club’—a monthly workshop series hosted by Boys & Girls Clubs of Metro Atlanta—strengthened his engagement in homework routines and improved consistency in implementing bedtime literacy practices. Follow-up surveys showed he increased shared book reading from 2.1 to 5.6 nights per week.

Community assets also shaped Daliyah’s development: her family walks 0.8 km (0.5 miles) to the West End Branch of the Atlanta-Fulton Public Library, where she attends weekly Story Time (using Every Child Ready to Read® practices) and checks out an average of 4.3 books per visit. Proximity to the library correlated with higher print motivation scores on the SSIS-RS (87th percentile) compared to peers living >2 km away (64th percentile).

Importantly, Daliyah’s development cannot be separated from structural factors. Her ZIP code (30310) has a median household income of $32,741—below Georgia’s median of $64,156—and a childhood poverty rate of 31.2% (U.S. Census ACS 2022). Yet her outcomes reflect how high-quality, culturally responsive programming combined with wraparound supports mitigates risk. For example, her growth in expressive vocabulary (Δ +68 words over 6 months) exceeded the ECLS-B national average gain for children in high-poverty neighborhoods (+39 words), demonstrating the impact of dosage and fidelity in early intervention.

Her story underscores that development is neither fixed nor predetermined. It is dynamically shaped by interaction between neurobiological potential and environmental opportunity. When Daliyah traced the letter ‘D’ with her index finger on a sandpaper cutout, matched rhyming picture cards during small-group instruction, or calmly used a breathing card (‘breathe in for 4, hold for 4, breathe out for 4’) during a moment of frustration, she was not just acquiring discrete skills—she was building neural architecture, identity as a learner, and agency within her world. These moments, repeated with intention and equity, constitute the infrastructure of human development.

For curriculum designers, Daliyah’s profile validates the necessity of embedded scaffolds—not add-ons. The OWL curriculum’s ‘Story Chunks’ routine, for instance, simultaneously builds narrative comprehension, sequencing, and turn-taking. For pediatricians, her data reinforce the value of developmental surveillance using standardized tools—not just milestone checklists. And for families, her progress affirms that consistency across settings—home, school, clinic—is not aspirational but achievable with accessible, respectful partnership.

Her measurable gains—whether in phoneme blending accuracy, cooperative play duration, or sleep regularity—are not isolated metrics. They are interdependent indicators of a developing person navigating complexity with growing competence. Daliyah does not represent perfection; she represents possibility—grounded in evidence, nurtured by relationships, and sustained by systems that prioritize equity in early learning.