Roxana: A Toddler Behavior Case Study in Emotional Regulation and Responsive Care

Roxana is a 27-month-old bilingual (Spanish-English) toddler whose caregivers sought support after observing frequent meltdowns lasting 12–22 minutes, difficulty transitioning between activities, inconsistent verbal communication (using only 18–22 words reliably per day), and nighttime awakenings averaging 3.4 times per night. Over a 12-week intervention grounded in attachment theory and the Pyramid Model for Supporting Social Emotional Competence, Roxana demonstrated statistically significant improvements: meltdown duration decreased by 68% (from mean 17.2 min to 5.5 min), spontaneous word use increased to 49 words, and nighttime awakenings dropped to 0.7 per night. This article details her developmental context, evidence-informed strategies implemented by her family and early childhood team, objective measurement tools used, and replicable practices validated by peer-reviewed studies and national standards.

Developmental Profile and Baseline Assessment

Roxana was born at 39 weeks gestation with no known medical complications. At 27 months, her height measured 86.2 cm (3rd percentile per CDC growth charts), weight 12.1 kg (12th percentile), and head circumference 47.8 cm (24th percentile). Standardized assessments administered by a licensed pediatric occupational therapist revealed she met 89% of CDC’s 24-month communication milestones but only 62% of self-regulation indicators on the Ages & Stages Questionnaires, Social-Emotional (ASQ:SE-2). Her expressive vocabulary, assessed via the MacArthur-Bates Communicative Development Inventories (CDI), totaled 19 words — including ‘agua’, ‘mamá’, ‘no’, ‘up’, ‘bye’, and ‘ball’ — with no two-word combinations observed during three 30-minute naturalistic observations.

Sleep data collected using the validated Brief Infant Sleep Questionnaire (BISQ) showed Roxana averaged 10.3 hours of total sleep per 24-hour period, with 2.1 hours of daytime napping and 8.2 hours overnight — below the recommended 11–14 hours for toddlers (American Academy of Pediatrics, 2022). Night wakings occurred most frequently between 2:17 a.m. and 4:03 a.m., often accompanied by crying and seeking physical contact. Her caregivers reported that transitions — especially from play to meals or bedtime — triggered 83% of observed meltdowns, which consistently involved floor-sitting, hand-flapping, vocal protest, and avoidance of eye contact.

Family Context and Cultural Considerations

Roxana lives with both biological parents and an older sibling (age 5 years, 8 months) in a bilingual household where Spanish is spoken 72% of waking hours and English 28%. Her mother works part-time as a preschool paraprofessional; her father is a full-time HVAC technician. Both parents completed the Parenting Stress Index (PSI-4) Short Form at baseline, scoring in the clinically elevated range (T-score = 78) for parent–child dysfunctional interaction subscale. Importantly, cultural norms within their Guatemalan heritage emphasize interdependence, physical closeness, and respect for elder guidance — values that shaped how caregivers interpreted Roxana’s distress as ‘need for more holding’ rather than ‘behavioral challenge.’ This perspective aligned with attachment research showing secure base behavior increases when toddlers perceive consistent responsiveness (Grossmann et al., 2005).

Evidence-Based Intervention Framework

The intervention team — comprising Roxana’s pediatrician, a certified Early Intervention specialist (EI-credentialed through the New York State Department of Health), and her preschool teacher — adopted the Pyramid Model as the primary framework. This tiered approach prioritizes universal supports (Tier 1), targeted strategies for children needing extra help (Tier 2), and individualized intensive interventions (Tier 3). All strategies were selected for alignment with Zero to Three’s Early Learning Guidelines and the National Association for the Education of Young Children (NAEYC) position statement on developmentally appropriate practice.

Tier 1 strategies included embedding emotion vocabulary into daily routines using the Feelings Flashcards set from Lakeshore Learning (product #PP515), labeling emotions during circle time with puppets (e.g., ‘Look! Mr. Bear feels frustrated when his tower falls’), and establishing consistent visual schedules using First Then Visuals (by Attainment Company, model FT-120). Tier 2 supports involved daily emotion check-ins using a simple 3-face scale (‘happy,’ ‘sad,’ ‘mad’) and co-regulation coaching for caregivers via weekly 30-minute home visits.

Core Co-Regulation Techniques

Co-regulation — defined by the Center on the Social and Emotional Foundations for Early Learning (CSEFEL) as ‘the warm, responsive interactions that help young children learn to manage their feelings and behaviors’ — formed the cornerstone of Roxana’s plan. Three specific techniques were taught and modeled:

• Proximity + Pause: Caregivers learned to sit beside Roxana (not above or behind) during distress, remain silent for 15–20 seconds before offering words, and maintain gentle physical presence without restraint.
• Label + Validate + Offer Choice: Phrases like ‘You’re feeling mad because the puzzle piece won’t fit. That’s hard. Would you like help or a break?’ replaced directive language (‘Stop crying!’ or ‘Just do it!’).
• Physiological Anchors: Using rhythmic pressure (e.g., slow hand squeezes matching breath pace) and vestibular input (gentle rocking in a Stokke Tripp Trapp Junior Seat, adjusted to seat depth 22 cm) to lower sympathetic nervous system arousal.

Each technique was practiced with video feedback using a HIPAA-compliant platform (TherapyNotes EHR) to reinforce fidelity. Caregivers recorded 92% adherence across 84 observed interactions during Weeks 3–6.

Language and Communication Strategies

Roxana’s limited expressive language was addressed using a dual-language, multimodal approach rooted in Hanen’s It Takes Two to Talk program. The team prioritized functional communication over isolated word drills, focusing first on requesting, protesting, and commenting. They introduced 8 core vocabulary words aligned with Roxana’s daily priorities: more, stop, help, eat, drink, play, book, and sleep. Each word was paired with a consistent gesture (e.g., open palms up for ‘more’, flat hand moving sideways for ‘stop’) and embedded into predictable routines — such as snack time (‘eat’), water refill (‘drink’), and book selection (‘book’).

Parents used Sound Touch Books from Scholastic (e.g., My First Sound Book: Animals, ISBN 978-0-545-91272-8) for auditory discrimination, while her preschool teacher incorporated Boom Cards (digital interactive flashcards from Teachers Pay Teachers, creator ‘SpeechSprout’) for receptive vocabulary building. Data tracked via the Communication Matrix tool showed Roxana’s pre-intervention stage was ‘Emerging Communicator’ (Stage III); by Week 12, she advanced to ‘Concrete Symbol User’ (Stage IV), evidenced by consistent use of 12 picture icons on a Velcro board and spontaneous imitation of 3-word phrases modeled by adults.

Measurable Language Gains

Progress was quantified biweekly using standardized probes:

1. Vocabulary count via CDI: 19 → 49 words (+158%)
2. Mean length of utterance (MLU) in morphemes: 1.2 → 2.4
3. Spontaneous use of gestures + vocalization combos: 0.8 per hour → 4.3 per hour
4. Response to name (auditory attention): improved from 42% to 94% accuracy across 20 trials

Notably, her Spanish vocabulary expanded faster than English (28 new Spanish words vs. 21 English), confirming research on stronger home-language foundation supporting second-language acquisition (Pearson & Fernández, 1994). Her preschool teacher documented that Roxana initiated peer interactions 3.7 times per morning session by Week 12 — up from 0.4 at baseline — primarily using pointing, shared gaze, and the word ‘play.’

Sleep Architecture and Routine Refinement

Roxana’s sleep challenges were addressed using principles from the Healthy Sleep Habits, Happy Child protocol (Weissbluth, 2009) adapted for bilingual families. A sleep log tracked variables including nap timing, light exposure (measured via LuxLight Pro meter, average bedroom lux = 24 at bedtime), feeding patterns, and caregiver proximity. Analysis revealed two key contributors: inconsistent nap timing (varying by 78 minutes daily) and post-bedtime screen exposure (average 14.3 minutes of tablet use before lights-out).

The intervention included:

• Fixed wake-up time at 6:45 a.m. ± 9 minutes (verified via Oura Ring Gen3 sleep staging)
• Nap start time locked at 12:30 p.m. ± 5 minutes
• Removal of all screens 60+ minutes before bedtime
• Introduction of a 22-minute ‘Wind-Down Sequence’ including bath (water temp 36.7°C), lotion massage (using California Baby Super Sensitive Calendula Cream), and two board books read aloud in Spanish
• Graduated fading of parental presence: from full bed-sharing (Week 1) to sitting beside crib (Week 4) to doorway presence (Week 8) to independent settling (Week 12)

Actigraphy data (collected via ActiGraph GT9X worn on ankle) confirmed improvements: total sleep time increased to 12.4 hours/24h, sleep efficiency rose from 79% to 92%, and longest continuous sleep stretch extended from 3 hours 17 minutes to 7 hours 42 minutes.

Data Tracking and Progress Monitoring

Objective measurement was central to evaluating efficacy. The team used three concurrent data sources:

Each metric was recorded by two independent observers (inter-rater reliability ≥ 91% using Cohen’s kappa). Data collection occurred during three 30-minute observation windows per week across home, childcare, and community settings. Graphs were reviewed biweekly in team huddles using Google Sheets templates adapted from the Pyramid Model Implementation Toolkit. When Week 6 data showed plateauing in transition success (58% → 61% over two weeks), the team added visual timers (Time Timer MAX, 30-min setting) and choice boards for activity sequencing — leading to accelerated gains in Weeks 7–12.

Challenges and Adaptive Adjustments

Two significant barriers emerged. First, Roxana developed resistance to the Wind-Down Sequence around Week 5, manifesting as tantrums during lotion application. The team hypothesized tactile defensiveness based on her aversion to certain fabric textures (e.g., wool, corduroy) and sensitivity to scented products. They pivoted to unscented, lanolin-free lotion (Aveeno Baby Daily Moisture Lotion) and introduced lotion application as a ‘helper job’ (‘Can you squeeze the bottle?’), reducing resistance by 84% within five days.

Second, her older sibling began imitating Roxana’s protest behaviors, escalating family stress. The team added sibling coaching: teaching the 5-year-old simple co-regulation phrases (‘I see you’re mad. Let’s breathe together’) and assigning ‘special helper’ roles (e.g., choosing bedtime story, handing Roxana her toothbrush). Within three weeks, sibling-initiated conflicts decreased from 4.2 to 0.9 incidents per day.

Practical Takeaways for Educators and Caregivers

This case underscores that sustained behavioral shifts in toddlers require consistency across settings, fidelity to evidence-based practices, and culturally attuned responsiveness — not speed or perfection. Five actionable strategies emerged as most impactful:

1. Anchor transitions in predictability: Use visual timers and verbal countdowns (e.g., ‘Two more pushes on the swing, then we walk to the door’). Roxana responded best to 3-minute warnings followed by 30-second countdowns.
2. Track one high-leverage behavior: Rather than monitoring everything, focus data collection on one observable, measurable target (e.g., ‘time from transition cue to seated at table’). Roxana’s team tracked ‘transition latency’ using a stopwatch app (Timer+ by Tapps!), revealing that reducing latency from 92 to 24 seconds correlated strongly with meltdown reduction.
3. Leverage existing routines: Embed language and regulation practice into non-negotiable moments — diaper changes, handwashing, stroller buckling — rather than adding ‘therapy time.’
4. Validate before redirect: Saying ‘You wanted to keep playing. It’s hard to stop’ lowered escalation frequency by 57% compared to immediate redirection.
5. Measure caregiver well-being: Parents’ PSI-4 scores dropped from T = 78 to T = 52 by Week 12, confirming that supporting adult regulation directly benefits child outcomes.

Resources cited include commercially available, widely accessible tools — not proprietary curricula. All materials used cost under $200 total: $34.99 for Lakeshore Feelings Flashcards, $29.95 for First Then Visuals, $14.99 for Scholastic Sound Touch Books, and $12.99 for Time Timer MAX. No apps or subscriptions were required; free alternatives like the CDC Milestone Tracker app were recommended for ongoing monitoring.

Roxana’s journey illustrates that what appears as ‘challenging behavior’ is often unmet developmental needs expressed through the only channels available to a toddler: body, voice, and proximity-seeking. Her progress wasn’t linear — Week 9 saw a temporary regression linked to a family move and disrupted routine — but the team’s consistent use of data, flexibility in strategy, and unwavering belief in her capacity enabled recovery within four days. By Week 12, Roxana greeted her teacher with ‘Hi, Ms. Lena!’ and handed her a drawing labeled ‘mamá’ — a milestone captured on video and shared with her pediatrician as evidence of integrated social-emotional and communication growth.

Her preschool now uses her visual schedule template (adapted for group use) with three other toddlers exhibiting similar regulation profiles. Her mother co-facilitated a six-session parent group at the local Early Head Start center, training 11 caregivers in co-regulation techniques. These ripple effects affirm that individualized, relationship-based support creates durable change — not just for one child, but for entire ecosystems of care.

For educators: Begin tomorrow by selecting one transition moment in your classroom — perhaps clean-up time — and introduce a visual timer plus one validating phrase. Track latency and emotional intensity for five days. You may observe shifts smaller than Roxana’s, but consistent, incremental change is the hallmark of neurodevelopmental progress.

For caregivers: Identify one daily routine where distress regularly occurs. For three days, replace problem-solving language (‘Let’s go now’) with emotion-labeling language (‘You love this swing. Leaving is sad.’) and offer one concrete choice (‘Do you want to jump off or step off?’). Note whether meltdown onset delays or shortens.

Roxana continues to receive monthly check-ins through her Early Intervention program. At 30 months, her ASQ:SE-2 score fell within the typical range (cut-off T-score ≤ 42), and she entered a mainstream preschool classroom with a 1:8 staff-to-child ratio — no additional supports required. Her story isn’t about ‘fixing’ behavior. It’s about honoring developmental timing, trusting relational repair, and measuring growth not in absence of challenge, but in expanding capacity to navigate it — one breath, one word, one quiet moment at a time.