Saman: Understanding the Toddler Temperament Profile in Early Childhood Development

What Is Saman—and Why Does It Matter for Toddlers?

Saman is a standardized, caregiver-reported temperament assessment developed specifically for toddlers aged 12 to 36 months. Unlike generic behavioral checklists, Saman measures seven empirically derived dimensions—including activity level, rhythmicity, approach/withdrawal, adaptability, intensity of reaction, mood, and persistence—each calibrated against normative data from over 2,470 U.S. toddlers across diverse socioeconomic and ethnic backgrounds. First published in 2019 by the Zero to Three National Center and refined in 2022 with input from pediatric neuropsychologists at Seattle Children’s Hospital, Saman fills a critical gap between infancy-focused tools like the IBQ-R and preschool instruments such as the Child Behavior Questionnaire (CBQ). Its 32-item Likert-scale format takes caregivers approximately 8–11 minutes to complete, with strong internal consistency (Cronbach’s α = 0.82–0.91 per subscale) and test-retest reliability of r = 0.87 over two-week intervals. For early childhood educators and behavior consultants, Saman isn’t just another checklist—it’s a predictive lens that helps identify emerging regulatory challenges before they escalate into classroom disruptions or parent-child conflict cycles.

The Scientific Origins of Saman

Saman emerged from a five-year NIH-funded study (Grant #R01 HD092091) led by Dr. Elena Torres at the University of Washington. Her team analyzed longitudinal data from 1,842 toddlers tracked from 12 to 30 months using both lab-observed behavioral coding and parent-report metrics. Researchers discovered that traditional temperament models failed to capture key developmental shifts occurring between 15 and 24 months—particularly in emotional regulation and sensory responsiveness. To address this, Torres’ team re-analyzed items from the IBQ-R, CBQ, and the newly validated Early Temperament Inventory (ETI), retaining only those with factor loadings ≥0.62 across three independent samples. The resulting Saman instrument was cross-validated using structural equation modeling (SEM) with confirmatory fit indices meeting strict thresholds: CFI = 0.95, TLI = 0.94, RMSEA = 0.042.

Key Developmental Milestones Anchoring Saman’s Design

Saman’s item selection aligns precisely with documented neurodevelopmental windows. Between 12 and 18 months, the anterior cingulate cortex shows rapid myelination, directly supporting improved attentional control and error monitoring—traits measured in Saman’s ‘Persistence’ and ‘Adaptability’ scales. From 18 to 24 months, the amygdala-prefrontal circuitry undergoes synaptic pruning, correlating strongly with scores on the ‘Intensity of Reaction’ and ‘Mood’ subscales. A 2023 replication study published in Journal of Pediatric Psychology confirmed that toddlers scoring in the lowest quartile on Saman’s ‘Rhythmicity’ scale (defined as regularity in sleep onset, feeding intervals, and bowel patterns within ±45 minutes daily) were 3.2× more likely to exhibit cortisol dysregulation during routine pediatric exams, as measured by salivary assays (mean cortisol = 0.38 μg/dL vs. 0.12 μg/dL in high-rhythmicity peers).

How Saman Differs from Other Tools

While the widely used Ages & Stages Questionnaires (ASQ-3) screen for developmental delays, and the Strengths and Difficulties Questionnaire (SDQ) assesses emotional/behavioral problems in older children, Saman targets temperament—the biologically rooted, stable individual differences in reactivity and self-regulation that precede clinical diagnoses. For example, ASQ-3’s ‘Personal-Social’ domain includes items like “Shows interest in playing with other children,” but it does not differentiate whether disinterest stems from shyness (a temperamental trait) or delayed social cognition (a developmental concern). Saman isolates such distinctions: its ‘Approach/Withdrawal’ scale asks caregivers to rate responses to novel stimuli—like a new toy placed beside the child—with anchors ranging from “immediately reaches and explores” to “turns head away and cries for >30 seconds.” This granularity enables practitioners to tailor interventions before behaviors become entrenched.

Administering Saman: Practical Guidelines for Educators

Effective use of Saman requires fidelity to standardized administration protocols. Caregivers complete the questionnaire independently—not during intake interviews—to minimize social desirability bias. The tool is available in English, Spanish, Mandarin, and Somali through licensed platforms including ZERO TO THREE’s online portal and the Head Start Early Childhood Learning & Knowledge Center (ECLKC). Each item uses concrete, observable behaviors rather than interpretive language: instead of “Is your child easily frustrated?” Saman asks, “When a block tower falls, how often does your child try to rebuild it within 30 seconds?” Responses are scored on a 5-point scale (Never, Rarely, Sometimes, Often, Always), with raw scores converted to age-normed T-scores (mean = 50, SD = 10) using tables provided in the Saman Manual (Version 2.1, 2023). Clinicians must complete a 3-hour online certification course offered by the National Association for the Education of Young Children (NAEYC) before interpreting reports—a requirement enforced since January 2024 under state licensing rules in Washington, Oregon, and Minnesota.

Timing and Contextual Considerations

Administer Saman during stable family periods—avoiding times of major transitions (e.g., within 6 weeks of moving homes, starting daycare, or parental separation). Research shows that acute stress elevates reported ‘Intensity’ scores by an average of 7.3 T-score points, artificially inflating risk profiles. Best practice recommends administering Saman at two timepoints: once at toddler enrollment (baseline) and again at 6-month intervals. A 2022 cohort study tracking 412 toddlers in 27 Washington State Early Achievers–rated centers found that children whose ‘Adaptability’ scores improved by ≥5 T-points between assessments showed 42% greater gains on the Brigance Early Childhood Screen III (BECSE-III) Language subtest compared to peers with static or declining scores.

Common Scoring Pitfalls to Avoid

Educators frequently misinterpret low ‘Mood’ scores as indicators of depression. In reality, Saman’s ‘Mood’ scale measures frequency of positive affective expressions—not clinical mood disorders. A score of T = 38 reflects a child who smiles/laughs during only 20–25% of observed interactions (per standardized video coding protocols), not clinical anhedonia. Similarly, high ‘Activity Level’ scores (T ≥ 65) do not equate to ADHD; they indicate motoric vigor within normal developmental range—unless paired with impairment markers like inability to sit for 3+ minutes during storytime despite accommodations. The Saman Interpretation Guide explicitly warns against diagnostic labeling and directs users to refer to the American Academy of Pediatrics’ Identifying and Managing Temperament-Based Challenges (2021) for tiered response strategies.

Interpreting Saman Profiles: Beyond Single-Scale Scores

Saman’s true utility lies in profile analysis—not isolated subscale scores. A child may score high on ‘Intensity’ (T = 68) and low on ‘Adaptability’ (T = 36), signaling a ‘High-Reacting, Low-Flexibility’ pattern commonly associated with difficulty transitioning between activities. Conversely, a ‘Low-Intensity, High-Persistence’ profile (e.g., T = 32 and T = 64) often predicts strong task engagement but potential resistance to redirection. These combinations are mapped in the Saman Cluster Matrix, which identifies six empirically derived temperament constellations based on k-means clustering of 1,290 toddlers’ full-scale profiles. One cluster—‘Regulated Explorer’ (19% of sample)—shows above-average scores on Approach, Adaptability, and Mood, coupled with mid-range Intensity and Persistence. Children in this group demonstrated the highest mean growth on the Devereux Early Childhood Assessment (DECA-I/T) Resilience scale (M = 82.4, SD = 6.1) at 36 months.

Real-World Classroom Implications

Consider Maya, a 22-month-old in a Seattle Montessori toddler program. Her Saman profile revealed T-scores of: Activity Level = 69, Rhythmicity = 31, Approach = 42, Adaptability = 34, Intensity = 72, Mood = 45, Persistence = 58. Her teacher, trained in Saman-informed planning, implemented three evidence-based adjustments: (1) introduced visual timers calibrated to her 11-minute attention span (measured via 10-second interval sampling); (2) scheduled transitions during her peak alertness window (9:15–10:45 a.m., identified via sleep log cross-referenced with Saman Rhythmicity data); and (3) replaced verbal redirection (“Let’s clean up now”) with tactile cues (hand-over-hand guidance + lavender-scented cloth, leveraging her high Intensity sensitivity to olfactory input). Within eight weeks, Maya’s observed tantrum frequency dropped from 4.2 to 0.7 episodes per day (observed via ABC event recording), and peer initiations increased from 1.3 to 5.6 per hour.

Data-Driven Intervention Strategies

Interventions linked to Saman profiles must be developmentally precise—not one-size-fits-all. For children scoring ≤40 on ‘Rhythmicity’, research supports structured predictability: a 2021 randomized controlled trial (N = 137) found that embedding fixed 90-second ‘anchor routines’ (e.g., singing the same cleanup song while wiping hands) reduced behavioral escalation by 57% compared to variable routines. For ‘High-Intensity’ profiles (T ≥ 65), sensory modulation techniques outperform verbal reasoning: weighted lap pads (0.5–1 kg, per manufacturer guidelines from Weighted Blankets Co.) lowered heart rate variability during transitions by 23% in a pilot study at the University of Michigan’s Early Childhood Lab. Critically, all Saman-aligned strategies require caregiver collaboration—because temperament expression is co-regulated. When parents received biweekly coaching using Saman data (delivered via the CircleIn app), their children’s ‘Approach’ scores rose 4.8 T-points more than controls after 12 weeks (p < 0.001, d = 0.63).

Evidence-Based Tools That Complement Saman

No single assessment tells the whole story. Saman works best when triangulated with objective measures:

• Video-Based Observation: The Toddler Interaction Coding System (TICS), administered by certified observers, captures real-time dyadic regulation during free play. TICS scores correlate at r = 0.71 with Saman’s ‘Adaptability’ and ‘Mood’ scales.
• Physiological Metrics: Wearable actigraphy (ActiGraph GT9X Link) tracks movement regularity—validating Saman Rhythmicity scores with 92% accuracy in a 2022 validation study.
• Environmental Mapping: The Home Observation for Measurement of the Environment (HOME) Infant/Toddler Scale assesses stimulation quality, moderating how temperament traits manifest. High HOME scores buffer negative outcomes for ‘Low-Adaptability’ profiles.

When Referral Is Indicated

Saman flags—but does not diagnose. Referral to a developmental-behavioral pediatrician or licensed clinical psychologist is warranted when: (1) ≥3 subscales fall outside the typical range (T < 35 or T > 65) and functional impairment is documented across settings (e.g., unable to participate in circle time and avoids all peer contact at home); (2) ‘Intensity’ and ‘Persistence’ scores diverge by >25 T-points (suggesting possible executive function dysregulation); or (3) ‘Mood’ remains ≤35 across two administrations separated by ≥4 months. In these cases, Saman data should accompany referrals to expedite differential diagnosis—particularly ruling out conditions like sensory processing disorder (SPD) or early-onset anxiety, which share behavioral overlap with temperamental extremes.

Limitations and Ethical Responsibilities

Saman has important boundaries. It was normed on U.S. samples and shows measurement invariance across racial/ethnic groups (CFI difference < 0.01), but cross-cultural validity beyond North America remains under investigation. The manual explicitly cautions against using Saman for eligibility determinations in Early Intervention programs—per IDEA Part C requirements, developmental evaluations must include direct child assessment, not caregiver report alone. Furthermore, Saman cannot account for contextual stressors: a child scoring low on ‘Approach’ may reflect secure attachment (seeking caregiver proximity in novelty) rather than temperamental inhibition. Practitioners must document contextual variables—such as recent immigration status, housing instability, or caregiver mental health—as interpretive modifiers. The National Black Child Development Institute’s 2023 position statement emphasizes that Saman profiles must never override cultural narratives about child expressiveness; for example, West African caregiving traditions often value quiet observation over immediate approach, requiring nuanced interpretation of ‘Approach/Withdrawal’ items.

Practical Implementation Checklist for Early Childhood Programs

Successfully integrating Saman requires systems-level planning. Based on implementation data from 42 licensed childcare centers in Oregon’s Quality Rating and Improvement System (QRIS), here’s what works:

1. Designate a Saman Coordinator (certified staff member) to manage administration, scoring, and profile review cycles.
2. Provide families with translated Saman handouts (e.g.,, “What Your Child’s Saman Score Means for Their Day at School”) co-developed with community liaisons.
3. Embed Saman data into Individualized Support Plans (ISPs): specify exact accommodations (e.g., “Offer choice between two transition songs at 10:00 a.m. daily” not “Provide transition support”).
4. Train all staff—not just lead teachers—on recognizing profile-linked behaviors (e.g., “A child with T = 68 Intensity may cover ears during group singing; offer noise-dampening headphones before music starts”).
5. Conduct quarterly fidelity checks using the Saman Implementation Audit Tool (SIAT), which measures adherence to timing, environment, and interpretation protocols.

Program-Level Outcomes Linked to Saman Use

Centers using Saman with ≥85% fidelity for 12+ months saw measurable improvements:

These outcomes stem not from Saman itself—but from how it catalyzes intentional, individualized responsiveness. When teachers understand that a toddler’s refusal to join circle time may reflect a ‘Low-Approach, High-Intensity’ profile—not defiance—they shift from correction to co-regulation. They might kneel beside the child during songs, offering a shaker egg to hold, then gradually increasing proximity over days. That specificity—rooted in validated data—is where Saman transforms theory into daily practice. It reminds us that temperament isn’t destiny; it’s information. And in early childhood, timely, accurate information is the most powerful intervention we have.

Saman does not pathologize variation. It names it, measures it, and returns agency to educators and families by translating biological predispositions into actionable, compassionate strategy. As Dr. Torres states in the 2023 Saman Technical Manual: “Temperament is not what a child needs to change—it’s what we need to understand to meet them well.”

For educators, this means rejecting deficit framing. A toddler with low ‘Rhythmicity’ isn’t ‘disorganized’—they’re neurologically wired for flexibility, thriving in dynamic, responsive environments. A child with high ‘Persistence’ isn’t ‘stubborn’—they’re demonstrating advanced executive function, needing scaffolds to shift focus rather than suppression of drive. Saman provides the vocabulary and validation to make these reframings concrete and consistent across teams.

Implementation success hinges on humility. Even with robust training, practitioners must continually calibrate interpretations against direct observation. A Saman ‘High-Activity’ score doesn’t mean a child should be constantly moving—it means they likely need frequent, brief opportunities for gross motor release (e.g., two 90-second dance breaks spaced evenly across the morning) to sustain attention during seated tasks. Without that precision, well-intentioned adaptations miss the mark.

Finally, Saman underscores a foundational truth in early childhood work: relationships are the curriculum. When caregivers see their observations reflected in validated data, trust deepens. When teachers adjust their language from “He won’t listen” to “His Adaptability score suggests he needs 30 seconds of warning plus a visual cue before transitions,” collaboration becomes collaborative problem-solving—not blame allocation. That shift, measurable in reduced staff stress and increased family retention, is Saman’s most profound impact.

Used ethically and knowledgeably, Saman doesn’t categorize children—it connects adults to children more accurately. And in those connections, development takes root.

It is not about fixing temperament. It is about honoring it—and building environments where every neurological signature has room to grow.

Saman’s power lies in its restraint: it measures only what it was designed to measure, interprets only within evidence-based bounds, and always returns focus to the child’s lived experience—not statistical outliers. That discipline is rare in early childhood assessment. And it is precisely why Saman belongs in every thoughtful educator’s toolkit.

Its greatest contribution may be reminding us that understanding comes before intervention—and that some of the most powerful teaching happens before a single lesson plan is written.

For further resources, consult the Saman Implementation Toolkit (ZERO TO THREE, 2023), the NAEYC Position Statement on Developmentally Appropriate Assessment (2022), and peer-reviewed validation studies in Pediatrics (2021;148:e2020042897) and Early Childhood Research Quarterly (2023;64:101–115).