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Construct validity of the First-Year Inventory (FYI Version 2.0) in 12-month-olds at high-risk for Autism Spectrum

Helen Y Lee1, Cheryl Vigen1, Lonnie Zwaigenbaum2

  • 1University of Southern California, USA.

Autism : the International Journal of Research and Practice
|August 28, 2020
PubMed

Insights

The First-Year Inventory 2.0 effectively screens infants for Autism Spectrum Disorder risk, showing strong validity in its Social-Communication and Sensory-Regulatory areas when compared to other developmental assessments.

Area of Science:

  • Developmental Psychology
  • Pediatric Diagnostics
  • Autism Spectrum Disorder Research

Background:

  • The First-Year Inventory 2.0 is a parent-report tool for identifying 12-month-old infants at risk for Autism Spectrum Disorder (ASD).
  • It assesses infant behavior in Social-Communication and Sensory-Regulatory domains.
  • While its screening performance is known, its validity requires examination.

Purpose of the Study:

  • To establish the validity of the First-Year Inventory 2.0 by examining its relationship with other established infant assessment instruments.
  • To determine the convergent validity of the Social-Communication and Sensory-Regulatory subscales.

Main Methods:

  • The study involved a sample of high-risk infant siblings of children diagnosed with ASD.
  • The First-Year Inventory 2.0 was administered alongside the Autism Observation Scale for Infants, Mullen Scales of Early Learning, Vineland Adaptive Behavior Scales-II, and Infant Behavior Questionnaire.
  • Correlational analyses were used to examine the relationships between the instruments.

Main Results:

  • Findings generally supported the validity of the First-Year Inventory 2.0.
  • The Social-Communication subscale demonstrated significant commonality with other measures.
  • The Sensory-Regulatory subscale showed less commonality, suggesting it may capture unique aspects of infant behavior.

Conclusions:

  • The First-Year Inventory 2.0 demonstrates good validity, particularly its Social-Communication domain.
  • The Sensory-Regulatory domain appears to offer unique insights.
  • A combination of assessment tools is recommended for comprehensive infant evaluations for ASD risk.
Abstract

Keywords:
Autism Spectrum DisorderFirst-Year Inventoryhigh-riskinfancyvalidity

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