Sensitivity, Specificity and Predictive Capacity of the Bayley-III in Full Term Children

Abstract

This paper reviews the existing literature on the predictive capacity of the Bayley Scales of Infant Development, 3rd edition (Bayley-III). A number of areas of concern have been identified including the tendency of the Bayley-III to overestimate ability, thereby underestimating delay. Research pertaining to the predictive capacity of the Bayley-III is reviewed in the context of the sensitivity and specificity, relating to delay. Difficulties in the assessment of development are explored and discrepancies between test scores on the Bayley-III and other measures are addressed in this context. Limitations of the current body of research, such as its focus on preterm populations, are presented and recommendations for further research are discussed.