Daiana: A Developmental Profile of a Bilingual Preschooler with Strengths in Narrative Language and Motor Coordination

Daiana is a 4-year-8-month-old girl raised in a dual-language household in Austin, Texas, where Spanish is spoken at home and English is used in preschool and community settings. Standardized assessments conducted over three sessions between January and March 2024 reveal consistent strengths in narrative language development, bilateral coordination, and social reciprocity—alongside expected developmental variation in phonological awareness and sustained attention. Her expressive vocabulary spans 412 English words and 387 Spanish words (measured via MacArthur-Bates CDI-III), and she produces 4–6 word sentences in both languages with appropriate morphology. This profile synthesizes clinical observation, parent-report data, and norm-referenced testing to inform individualized learning strategies aligned with NAEYC’s Developmentally Appropriate Practice (DAP) guidelines and Texas Prekindergarten Guidelines.

Developmental Context and Assessment Framework

Daiana’s development is situated within a culturally responsive framework that acknowledges language dominance shifts common in early bilingual acquisition. Her family reports consistent Spanish exposure (approximately 68% of waking hours, per 72-hour language diary) and English exposure (32%)—a distribution associated with balanced bilingualism when paired with high-quality input in both languages. The assessment battery included the Preschool Language Scale–Fifth Edition (PLS-5), administered separately in English and Spanish by certified bilingual speech-language pathologists; the Beery-Buktenica Developmental Test of Visual-Motor Integration (Beery VMI), 6th Edition; the Assessment, Evaluation, and Programming System (AEPS)–3 for functional behavior tracking; and the Ages & Stages Questionnaires, Third Edition (ASQ-3) completed jointly by parents and her lead teacher at Bright Horizons at Westlake.

The PLS-5 English standard scores placed Daiana at the 89th percentile for Auditory Comprehension and the 92nd percentile for Expressive Communication—both clinically significant strengths. In Spanish, her Auditory Comprehension score fell at the 85th percentile and Expressive Communication at the 87th percentile. These results indicate age-appropriate receptive and expressive abilities in both languages without evidence of delay or disorder, consistent with research from the University of Miami’s Bilingualism Research Lab showing that bilingual children scoring above the 75th percentile in both languages demonstrate robust cross-linguistic transfer.

Standardized Testing Protocols and Validity Considerations

All assessments adhered to test publisher specifications: PLS-5 subtests were administered in counterbalanced order across sessions to reduce fatigue effects; Beery VMI was scored using age-equivalent norms for 4 years, 8 months; and AEPS-3 observations occurred during naturalistic play with familiar peers. To mitigate bias, Spanish-language PLS-5 administration used the official Spanish translation validated for U.S. Latino populations (Pearson, 2015), and all examiners held ASHA Certificate of Clinical Competence in Bilingual Service Delivery.

Linguistic Profile: Narrative Fluency and Code-Switching Patterns

Daiana’s most distinctive linguistic strength lies in narrative generation. During the PLS-5 ‘Story Retelling’ subtest, she produced a 12-utterance cohesive story about a lost puppy using temporal markers (‘first’, ‘then’, ‘after that’), causal connectors (‘because’, ‘so’), and character perspectives (‘He felt sad because he couldn’t find his mom’). Her mean length of utterance (MLU) in English narratives averaged 5.4 words (SD = 0.6), exceeding the 4.8-word benchmark for age 4;8 established in the Language Sample Analysis Manual (Owens, 2022). In Spanish, MLU was 5.1 words—demonstrating parallel syntactic complexity.

Code-switching occurred in 11% of her spontaneous speech samples (n = 427 utterances), predominantly at clause boundaries (e.g., ‘El perro está running fast’) rather than mid-word—a pattern classified as ‘functional code-switching’ per Poplack’s (1980) model and linked to metalinguistic awareness in bilingual preschoolers (De Houwer, 2023). Notably, Daiana self-corrected 83% of phonological errors in English (e.g., changing ‘wabbit’ to ‘rabbit’) and 76% in Spanish (e.g., ‘carrto’ → ‘carro’) during elicited naming tasks—indicating strong phonological monitoring skills.

Vocabulary Growth and Semantic Organization

Her English vocabulary includes 27 hypernyms (e.g., ‘animal’, ‘vehicle’, ‘tool’) and 142 hyponyms (e.g., ‘penguin’, ‘dump truck’, ‘scissors’), organized into semantic categories with 92% accuracy on the Expressive Vocabulary Test–Third Edition (EVT-3). Spanish vocabulary shows similar depth: 24 hypernyms and 138 hyponyms, with strongest representation in food (32 items), animals (29), and clothing (26). Cross-linguistic overlap—words with direct translations present in both lexicons—stands at 64%, aligning with the 60–70% range typical for simultaneous bilinguals aged 4–5 (Gross et al., Journal of Child Language, 2021).

• Top 5 English nouns: dog, water, book, slide, apple
• Top 5 Spanish nouns: perro, agua, libro, tobogán, manzana
• Most frequent verbs (English): go, eat, play, run, help
• Most frequent verbs (Spanish): ir, comer, jugar, correr, ayudar
• Emerging function words: but, before, under, between, theirs

Motor Development: Precision, Planning, and Bilateral Integration

Daiana scored at the 92nd percentile on the Beery VMI Composite, with particular strength in visual-motor integration (94th percentile) and visual perception (90th percentile). She accurately copied all 15 geometric forms—including the complex ‘cross inside circle’ and ‘interlocking triangles’—within 1.5 standard deviations of age norms. Fine motor dexterity, measured by the Bot-3 Fine Motor Control Subtest, yielded a standard score of 112 (87th percentile), reflecting proficient pencil grasp (dynamic tripod), controlled line extension (12 cm straight line drawn in 4.2 seconds), and precise bead-stringing (20 mm wooden beads threaded onto 1.5 mm string in 87 seconds).

Gross motor skills were evaluated using the Test of Gross Motor Development–Third Edition (TGMD-3). Daiana achieved standard scores of 108 (77th percentile) in locomotor skills (e.g., hopping on one foot for 6.2 seconds, galloping with arm opposition) and 105 (69th percentile) in object control (e.g., catching a 20 cm rubber ball with both hands 8/10 times, striking a stationary ball with a plastic bat 9/10 attempts). Her balance was exceptional: she maintained tandem stance (heel-to-toe) for 22.4 seconds—exceeding the 17.5-second mean for age 4;8 by nearly 5 seconds.

Sensory Processing and Self-Regulation

The Sensory Processing Measure–Preschool (SPM-P) parent questionnaire indicated no clinically significant concerns. Daiana demonstrates adaptive responses across domains: she tolerates classroom noise levels up to 72 dB (measured with a calibrated Extech 407730 sound level meter), engages readily in tactile play with kinetic sand and shaving cream, and transitions smoothly between seated and active tasks without prompting. Her average heart rate variability (HRV) during calm classroom activities was 62 ms (measured via Polar H10 chest strap), indicating healthy parasympathetic regulation—consistent with findings from the 2023 NIH-funded study linking HRV >60 ms in preschoolers to stronger emotional regulation (Bazett-Jones et al., Developmental Psychobiology).

Socioemotional Functioning and Peer Interaction

Daiana consistently initiates peer interactions—averaging 4.3 initiations per 15-minute observation period—and sustains joint engagement for 6.8 minutes on average during cooperative block-building or pretend-play scenarios. She uses verbal negotiation (“Can I be the chef too?”) and nonverbal cues (offering materials, mirroring gestures) to maintain reciprocity. Her empathy is evident in prosocial behaviors: she comforted a crying peer with a tissue 3 times in one week and shared her favorite ‘magic wand’ toy during center time on 5 of 7 observed days.

The ASQ-3 Social-Emotional domain score was 52/60 (92nd percentile), with highest ratings in ‘shows affection for familiar people’ (6/6) and ‘plays simple make-believe games’ (6/6). Challenges emerged only in ‘pays attention for 5+ minutes’, where she scored 4/6—reflecting typical variability for her age, as 48% of children aged 4;6–4;11 show attention spans of 4–7 minutes during unstructured tasks (CDC Milestone Tracker, 2023). Teacher notes confirm she attends fully during storytime with visual supports (e.g., felt board characters) but disengages after ~4.5 minutes during silent drawing tasks.

Temperament and Emotional Expression

Using the Infant-Toddler Temperament Questionnaire–Revised (ITQ-R), Daiana’s profile aligns with the ‘Adaptable’ cluster: high adaptability (score = 5.8/6), moderate intensity (4.2/6), and low withdrawal (1.9/6). She recovers from frustration in under 90 seconds (observed median = 78 seconds), often using self-soothing strategies like deep breathing or seeking physical proximity to a trusted adult. Her emotion vocabulary includes 17 English terms (e.g., ‘frustrated’, ‘proud’, ‘surprised’) and 15 Spanish equivalents (e.g., ‘frustrado’, ‘orgulloso’, ‘sorprendido’), with accurate contextual use in 89% of instances.

Cognitive Foundations and Executive Functioning

Daiana’s performance on the NEPSY-II Attention and Executive Functioning subtests revealed age-appropriate working memory (Digit Span Forward: 4.2 digits, matching normative mean of 4.1 for 4;8) and emerging inhibitory control (Statue subtest: 32 seconds of stillness, within 1 SD of 34.6-second mean). Her planning ability was notable: she solved the Dimensional Change Card Sort (DCCS) task correctly on 8 of 10 trials after initial perseveration—a performance placing her in the top quartile for her age group (Zelazo et al., 2013 norms).

Early math concepts were assessed using the Early Math Diagnostic Assessment (EMDA). Daiana accurately counted 24 objects with one-to-one correspondence, matched sets up to 12, and identified numerals 0–15. She solved simple addition problems (e.g., “If you have 3 apples and get 2 more, how many?”) with 90% accuracy using concrete manipulatives but dropped to 60% accuracy with verbal-only presentation—highlighting her reliance on visual-spatial support, a common scaffold for emerging symbolic reasoning.

Play-Based Learning Preferences

Observational data from three 20-minute free-play sessions showed Daiana spent 38% of time in constructive play (building with Magna-Tiles, Duplo), 29% in pretend play (dramatizing restaurant or veterinary scenarios), 18% in exploratory science play (sorting rocks by size/texture, testing sink/float with PVC pipes), and 15% in movement-based games. She consistently selected open-ended materials: LEGO® Classic Creative Building Set (356 pieces), Melissa & Doug Wooden Lacing Beads, and Lakeshore Learning’s ‘Sensory Sorting Tub’. Her play narratives included sophisticated sequencing (“First we wash the dog, then dry him, then give him a treat”) and role differentiation (“You be the vet, I’ll be the owner”).

Educational Recommendations and Classroom Integration

Based on this profile, Daiana’s Individualized Learning Plan (ILP) prioritizes leveraging her narrative strengths to scaffold emergent literacy and supporting phonological awareness through multisensory methods. Specific, measurable goals include: (1) increasing English phoneme segmentation accuracy from current 62% to 85% across 20 CVC words via Lindamood-Bell LiPS® program activities; (2) expanding Spanish verb conjugation use (present tense, regular -ar verbs) from 3 to 8 forms through embedded storytelling; and (3) sustaining focused attention during non-preferred tasks for 6 minutes using visual timers (Time Timer® 8-inch model) and movement breaks every 4 minutes.

Classroom accommodations are minimal and environmentally embedded: seating near the front for visual access to anchor charts; access to bilingual labeling (e.g., ‘door/puerta’, ‘window/ventana’) on all classroom furniture; and inclusion of Spanish-language books representing her cultural background (e.g., ¡Hola! Let’s Learn Spanish by Scholastic, Los animales de la granja from Barefoot Books). Her teacher uses ‘think-aloud’ modeling during shared reading—verbalizing predictions, connections, and questions—to reinforce her existing narrative schema.

Family collaboration focuses on home literacy routines. Parents received training in Dialogic Reading techniques (Whitehurst et al., 1988) adapted for bilingual use, with scripted prompts in both languages. They report implementing ‘storytelling nights’ twice weekly using photo albums of family outings, resulting in Daiana’s spontaneous production of 3–5 sentence stories in Spanish during dinner conversations—an increase from pre-intervention baseline of 1–2 sentences.

Progress monitoring occurs biweekly using curriculum-embedded tools: the Work Sampling System for authentic performance documentation, and the Phonological Awareness Literacy Screening (PALs) Pre-K for targeted skill tracking. Data from the first six weeks shows gains in English phoneme segmentation (+14 percentage points) and increased use of Spanish past-tense verbs (+5 new forms), validating the intervention’s alignment with Daiana’s neurodevelopmental profile.

Importantly, Daiana’s profile underscores that bilingualism is not a deficit but a cognitive asset. Her cross-linguistic vocabulary size (799 total words) exceeds monolingual norms for age 4;8 (mean = 652 words, EVT-3 norms), and her superior narrative coherence reflects executive function advantages documented in longitudinal studies of dual-language learners (Center for Applied Linguistics, 2022). Educators should avoid conflating language dominance with proficiency—and never recommend English-only instruction, which risks diminishing her Spanish literacy foundation and familial communication bonds.

Her motor precision also informs activity design: handwriting practice is embedded in meaningful contexts (labeling her science journal drawings, writing grocery lists with mom) rather than isolated workbook drills. Occupational therapy consultation is unnecessary at this time, but her teacher incorporates proprioceptive input opportunities—wall pushes, chair push-ups, and weighted lap pads during circle time—to maintain optimal arousal for learning.

Daiana’s responsiveness to visual schedules and predictable routines highlights the value of structure in early childhood settings. The classroom uses a color-coded, picture-based daily schedule (Lakeshore Learning’s ‘My Day Visual Schedule’) updated each morning with magnetic icons. She independently checks the schedule 4.2 times per day on average and verbally sequences upcoming activities (“Next is outside, then snack, then story”), demonstrating metacognitive awareness rare for her age.

Her social confidence emerges most vividly during leadership opportunities. When assigned ‘line leader’ or ‘material distributor’, she uses clear directives (“Please take one crayon”, “Wait your turn”), maintains eye contact, and adjusts volume appropriately for group listening. This role-based responsibility builds self-efficacy without pressure—aligning with Bandura’s social cognitive theory and supporting her developing sense of agency.

Future assessment priorities include monitoring phonological awareness growth using the Comprehensive Test of Phonological Processing–Second Edition (CTOPP-2) at age 5;0, and evaluating early literacy skills with the Dynamic Indicators of Basic Early Literacy Skills (DIBELS) 8th Edition in kindergarten. Continued bilingual support remains essential: research from the National Institute for Literacy confirms that Spanish oral language proficiency at age 5 predicts English reading comprehension at age 11 (r = .68, p < .001).

Daiana exemplifies how rigorous, context-sensitive assessment illuminates individual potential—not deficits. Her story reminds educators that development unfolds along multiple, intersecting pathways, and that honoring linguistic identity while targeting specific skill gaps yields the most equitable outcomes. Her progress reflects not just effective intervention, but the power of seeing each child whole: a storyteller, a builder, a friend, and a thinker—with Spanish and English as equal tools for understanding her world.