Parent-Infant Relationship Global Assessment Scale (PIR-GAS)

Measure DescriptionSource of measure Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood, Revised (DC:0-3R), by ZERO TO THREE (2005). Order at Note: The DC:0-3R was just recently revised to the DC:0-5 but the PIR-GAS citation has not yet been updated
Mode of administration Clinical interview with parent coupled with observation of parent-child interaction
Age range for use0 to 3
Domains AssessedGlobal relationship quality, ranging from "well adapted" to "documented maltreatment"
Related MeasuresNone reported
BurdenTraining needed to administerFour+ hours training by experienced clinician, or certified psychologist
Minutes to completeThree to five 45 minute sessions
# of itemsOne 9-point scale to characterize parent-child relationship quality
CostThere is a charge for the Diagnostic Manual (DC:0-3R or current version, DC:0-5). The stand alone PIR-GAS is available online as a PDF at no charge.
Adaptation for AIAN useAdaptedNo
Developer allows adaptation?No
Used with AIAN populations?None documented
AIAN: Cronbach's alpha rangeNot available
AIAN: Evidence of validityNot available
Other populations: Cronbach's alpha rangeEvidence for the reliability of the PIR-GAS is limited and may vary based on the length of the observation (Müller et al., 2013).
Other populations: Evidence of validityEvidence for the tool's validity is somewhat limited. One study provided evidence of predictive validity: PIR-GAS score at 20 months was associated with parent-child interaction and internalizing symptoms at 24 months (Aoki, Zeanah, Heller, Bakshi, 2002). Another showed the concurrent validity of the PIR-GAS with measures of internalizing and externalizing symptoms (Thomas & Guskin, 2001).
SourceDeveloperZERO TO THREE
SummaryComments about sensitivity to changePIR-GAS scores improved (effect size = .16) following relationship-based intervention (Knapp, Ammen, Arstein-Kerslake, Poulsen, Mastergeorge, 2007).
General remarks

Table Updated October 12, 2107