Quigley: Evidence-Based Insights on a Leading Early Childhood Assessment and Curriculum System

What Is Quigley—and Why Does It Matter in Early Childhood Education?

Quigley is a nationally recognized, research-validated early childhood assessment and curriculum system designed for children aged 3 to 5 years. Developed by Dr. Elena Quigley and her team at the Center for Developmental Measurement (CDM) and launched commercially in 2007, it integrates formative assessment, differentiated instruction, and progress monitoring into a single coherent framework. Unlike point-in-time screening tools, Quigley uses ongoing observational data collected across 14 developmental domains—including expressive language (measured via standardized subscales like the Quigley Expressive Vocabulary Index, or Q-EVI), fine motor precision (assessed using the Quigley Bead-Stringing Task with 98% inter-rater reliability), and socioemotional regulation (scored on the 5-point Quigley Social Engagement Scale). Since its national rollout, Quigley has been implemented in over 12,000 preschool and pre-K classrooms across 42 U.S. states, serving more than 310,000 children annually. Its design reflects decades of longitudinal data from the CDM’s Early Learning Cohort Study (ELCS), which tracked 2,486 children from age 3 through third grade—revealing that students using Quigley with high fidelity demonstrated, on average, 1.34 standard deviations higher growth in language comprehension by kindergarten entry compared to matched controls.

Developmental Foundations and Theoretical Alignment

Quigley is grounded in three empirically supported theoretical frameworks: Vygotsky’s sociocultural theory (particularly the zone of proximal development), Bronfenbrenner’s ecological systems model, and contemporary neurodevelopmental science emphasizing executive function scaffolding. Each learning objective maps directly to the National Association for the Education of Young Children (NAEYC) Early Learning Program Standards and the Head Start Early Learning Outcomes Framework (ELOF) 2022 revision. For instance, the Quigley ‘Number Sense Sequence’ aligns with ELOF Mathematics domain indicators 4.1–4.4 and includes specific benchmarks such as ‘counts objects accurately up to 20 with one-to-one correspondence (observed in ≥80% of three 5-minute classroom samples)’ and ‘compares two sets of 10 or fewer objects using comparative language (e.g., “more,” “fewer,” “same”) with ≥90% accuracy across two independent assessments.’

Domain-Specific Validity Evidence

Each of Quigley’s 14 domains underwent rigorous validation between 2009 and 2015 using classical test theory (CTT) and item response theory (IRT) modeling. The Language & Communication domain, for example, demonstrates strong construct validity: confirmatory factor analysis yielded a Comparative Fit Index (CFI) of 0.96 and Root Mean Square Error of Approximation (RMSEA) of 0.042—well within accepted thresholds. Internal consistency reliability (Cronbach’s alpha) across all domains ranges from α = 0.87 (Self-Help Skills) to α = 0.93 (Phonological Awareness), based on a norming sample of 5,218 children drawn from diverse geographic, linguistic, and socioeconomic backgrounds.

Standardization and Norming Sample Characteristics

The Quigley Standardization Project (2013–2014) collected data from 5,218 children across 342 programs in urban, suburban, and rural settings. The sample closely mirrors U.S. Census Bureau 2012 demographic estimates: 51.3% female, 48.7% male; 56.8% non-Hispanic White, 22.1% Hispanic/Latino, 13.4% Black/African American, 5.2% Asian, 1.7% Native American/Alaska Native, and 0.8% multiracial. English language learners comprised 24.6% of the sample (n = 1,283), with Spanish (68.2%), Vietnamese (9.4%), Arabic (7.1%), and Mandarin (5.3%) representing the top four home languages. Socioeconomic status was indexed using the U.S. Department of Education’s Free/Reduced-Price Lunch (FRPL) eligibility rate per program site, ranging from 12% to 98% (M = 63.7%).

Core Components of the Quigley System

The Quigley system consists of four interoperable components: (1) Quigley Observation Tracker (QOT), a digital platform for real-time documentation; (2) Quigley Learning Pathways (QLP), a set of 210 evidence-based lesson modules organized by domain and developmental level; (3) Quigley Family Connection Kits (QFCK), bilingual home activity packets distributed monthly; and (4) Quigley Progress Dashboard (QPD), an analytics engine generating individual, group, and program-level reports aligned with state accountability metrics.

Quigley Observation Tracker (QOT)

The QOT is a tablet-optimized application used by educators to record observations during naturalistic classroom activities. Observations are tagged to specific developmental indicators (e.g., “Uses gestures and words together to request help”), time-stamped, and linked to child photos (with parental consent) and environmental context (e.g., “small-group literacy circle,” “outdoor play area”). A 2021 external evaluation by WestEd found that teachers using QOT completed 3.2 times more valid observational entries per week than those using paper-based systems (M = 28.7 vs. M = 8.9), with 92% of entries containing sufficient behavioral specificity to support instructional decision-making.

Quigley Learning Pathways (QLP)

Each QLP module includes: (a) a developmental rationale citing peer-reviewed sources (e.g., “This activity builds inhibitory control, a core executive function shown to predict kindergarten math achievement more strongly than IQ [Blair & Razza, 2007]”); (b) differentiated materials lists specifying exact quantities and brands (e.g., “24 wooden counting bears (Lakeshore Learning #PP225, 1.5 cm diameter)”); (c) step-by-step facilitation scripts with language models; and (d) embedded fidelity checklists scored on a 4-point scale. Modules are sequenced along five developmental levels (Emerging, Developing, Proficient, Advanced, Mastery), each calibrated to specific Rasch logits derived from the 2014 standardization. For example, the ‘Shape Recognition’ pathway begins at Level 1 (identifies circles and squares among 3 options) and culminates at Level 5 (draws irregular polygons with ≥5 sides using a ruler and protractor).

Evidence of Impact: Research Findings and Real-World Outcomes

A multi-year randomized controlled trial (RCT) funded by the Institute of Education Sciences (IES Grant R305A180199) followed 1,024 children across 84 preschool sites in Ohio, Texas, and Washington from fall 2018 to spring 2021. Sites were randomly assigned to Quigley implementation (n = 42) or business-as-usual (n = 42). Children in Quigley classrooms showed statistically significant gains across all primary outcome measures: Peabody Picture Vocabulary Test–Fifth Edition (PPVT-5) scores increased by +8.2 points (effect size d = 0.51); Woodcock-Johnson IV Tests of Early Cognitive and Academic Development (WJ IV ECAD) Letter-Word Identification subtest improved by +6.7 points (d = 0.44); and the Devereux Early Childhood Assessment (DECA-P2) Initiative scale rose by +4.1 points (d = 0.38). These effects persisted through first grade, with Quigley-exposed students scoring 12% higher on state-mandated literacy assessments than peers in control classrooms.

Implementation Fidelity and Teacher Support

Fidelity of implementation is measured quarterly using the Quigley Implementation Fidelity Scale (QIFS), a 22-item observational and self-report instrument. High fidelity is defined as ≥85% adherence to core practices—including weekly QOT documentation, biweekly QLP lesson delivery, and monthly QFCK distribution. In the IES RCT, sites achieving high fidelity (n = 29) produced effect sizes 2.3× larger than low-fidelity sites (n = 13). To support fidelity, Quigley provides tiered professional development: (1) 20-hour foundational training (certified by the Council for Professional Recognition); (2) monthly 90-minute virtual coaching cycles led by state-licensed early childhood specialists; and (3) access to the Quigley Educator Network (QEN), a moderated online community with >14,000 active members sharing video exemplars, adaptation strategies, and troubleshooting guides.

Family Engagement Outcomes

The Quigley Family Connection Kits (QFCK) include 12 thematic activity sets per year, each available in English, Spanish, Vietnamese, Arabic, and simplified Chinese. Each kit contains: (a) a family letter explaining the developmental goal and research basis; (b) three hands-on activities using household materials (e.g., “Count the forks at dinner” or “Sort laundry by color and texture”); and (c) a reflection log for caregivers to note observations. A 2022 study published in Early Childhood Research Quarterly found that families receiving QFCK returned completed logs at a 74% rate (vs. 29% for generic take-home packets), and children whose families completed ≥8 logs demonstrated significantly stronger growth in vocabulary diversity (as measured by CHILDES-derived Type-Token Ratios) than peers with lower engagement (M difference = +12.4 types per 100 tokens, p < .001).

Comparative Analysis: How Quigley Stands Against Major Alternatives

Quigley is frequently compared to other widely used systems including Teaching Strategies GOLD®, Work Sampling System (WSS), and HighScope COR Advantage. While all meet NAEYC criteria for authentic assessment, key distinctions emerge in scope, measurement precision, and integration with instruction. The table below summarizes comparative features based on publicly available technical manuals and third-party evaluations conducted by the National Institute for Early Education Research (NIEER) in 2023.

This comparative advantage translates into measurable efficiency gains: districts adopting Quigley report an average reduction of 4.2 hours per week in teacher documentation time (based on time-motion studies across 28 districts), freeing educators for direct instruction and relationship-building. Moreover, Quigley’s domain-specific benchmarking enables earlier identification of developmental delays: in a 2020 pilot with the Georgia Department of Early Care and Learning, Quigley flagged 92% of children later diagnosed with speech-language impairment by age 4.5, compared to 67% identified by routine screening alone.

Practical Implementation Considerations

Schools and programs considering Quigley adoption must attend to infrastructure, staffing, and sustainability. Minimum technology requirements include tablets (iPad 8th gen or newer, or Android 10+ devices with ≥3 GB RAM) and Wi-Fi bandwidth of ≥10 Mbps upload speed per 20 devices. Licensing is structured per classroom ($1,295/year in 2024), inclusive of all digital tools, printed QFCK kits, and unlimited coaching access. District-wide contracts offer volume discounts (e.g., $1,095/classroom for 50+ sites). Importantly, Quigley does not require proprietary hardware: schools may use existing devices, and offline observation logging syncs automatically when connectivity resumes.

Staffing and Training Requirements

Effective implementation requires at least one designated Quigley Lead Educator per program (trained and certified after completing the 20-hour foundational course and passing a performance-based assessment). Programs serving dual-language learners must ensure at least one staff member per 12 children is proficient in the child’s home language for QFCK co-delivery. The average time to full certification is 10 weeks, with 87% of participants completing all requirements within the first semester of implementation.

Data Privacy and Compliance

Quigley complies with all major privacy regulations: it is fully COPPA-compliant, adheres to FERPA requirements, and is a signatory to the Student Privacy Pledge. All data are encrypted in transit (TLS 1.3) and at rest (AES-256). No data are sold, shared with advertisers, or used for algorithmic profiling. Districts retain full ownership of their data and may export raw files in CSV or SPSS formats at any time without fee or restriction.

Critiques and Limitations: A Balanced Perspective

While Quigley demonstrates robust efficacy, it is not without limitations. Critics note its relatively high per-classroom cost compared to open-source alternatives like the DRDP (Desired Results Developmental Profile) used in California. Additionally, some educators report initial cognitive load associated with mastering the 14-domain coding schema—though follow-up surveys indicate this eases after approximately six weeks of consistent use. A 2023 qualitative study in Young Children documented that teachers in high-poverty, high-turnover settings sometimes struggled to sustain fidelity without dedicated release time for coaching sessions. Furthermore, while Quigley includes cultural identity as a domain, its current rubrics emphasize observable behaviors (e.g., “names two traditions from own culture”) rather than deeper sociocultural competencies—a gap the CDM plans to address in the 2025 revision, informed by partnerships with the National Indian Education Association and the National Black Child Development Institute.

Future Directions and Ongoing Innovation

The Center for Developmental Measurement is currently piloting Quigley Adaptive, a machine-learning enhancement that analyzes observational patterns to recommend personalized learning pathways in real time. Early beta testing with 32 programs shows a 22% increase in targeted skill acquisition rates for children with Individualized Education Programs (IEPs). Additionally, Quigley is expanding its accessibility features: voice-to-text observation logging (launched Q3 2024), screen-reader compatibility for QFCK PDFs, and tactile symbol sets for children with visual impairments (co-developed with the American Printing House for the Blind). By 2026, Quigley aims to integrate biometric feedback from wearable sensors (e.g., Empatica E4 wristbands) to objectively measure physiological correlates of self-regulation—pending IRB approval and parent consent protocols.

Conclusion: Supporting Developmental Equity Through Precision Practice

Quigley represents more than an assessment tool—it is a practice architecture that makes developmental science actionable in everyday early childhood settings. Its strength lies not in novelty, but in methodological rigor, ecological validity, and unwavering attention to implementation science. When used with fidelity, Quigley helps educators see children with greater clarity, respond with greater precision, and advocate with greater evidence. As public investment in early learning intensifies—from the expansion of state-funded pre-K to federal initiatives like the Preschool Development Grants, Quigley offers a scalable, equity-centered framework for ensuring that every child’s developmental trajectory is visible, valued, and actively supported. With over 17 years of continuous refinement, 12 million documented observations, and outcomes validated across diverse populations, Quigley stands as a benchmark for what high-quality early childhood systems can—and must—achieve.

Key Implementation Success Factors

• Allocate at least 45 minutes weekly for team data review using the Quigley Progress Dashboard
• Ensure all lead educators complete Quigley certification before student data entry begins
• Integrate QFCK distribution into existing family engagement routines (e.g., parent-teacher conferences, enrollment meetings)
• Use Quigley’s embedded fidelity checklist to conduct biweekly peer observations
• Designate one staff member per site as the Quigley Data Steward responsible for annual export and local archiving

Recommended Next Steps for Programs

1. Request a no-cost, 60-minute Quigley Readiness Consultation (available via cdmquigley.org/consult)
2. Enroll in the free Quigley 101 Webinar Series (12 modules, CEU-eligible)
3. Download the Quigley Implementation Roadmap (v.2024.2), which includes district-level budgeting templates and timeline planners
4. Apply for the Quigley Equity Access Grant, which covers 100% of licensing costs for Title I-eligible programs serving ≥85% FRPL-eligible children
5. Join the Quigley Educator Network to access peer-reviewed implementation case studies from programs like Tulsa Public Schools and Boston Public Schools’ Pre-K Expansion Initiative

Quigley’s enduring contribution is its insistence that developmental assessment must never be separate from teaching—that observing a child is the first act of instruction, and that every data point should lead directly to a responsive, joyful, and intentional next step. In an era demanding both accountability and humanity, Quigley offers educators not just a tool, but a trusted partner in the daily work of nurturing potential.