Findings indicated good internal validity of all short tests except the ASQ-3.
The Bayley-III was given at a center by psychologists whereas the short tests were administered in the home by interviewers, as in a survey setting. The scores were compared with those on the Bayley Scales of Infant and Toddler Development (Bayley-III), taken as the ‘gold standard’. We examined the feasibility, reliability, and concurrent validity of three multi-dimensional screeners (Ages and Stages Questionnaires (ASQ-3), Denver Developmental Screening Test (Denver-II), Battelle Developmental Inventory screener (BDI-2)) and two single-domain tests (MacArthur-Bates Short-Forms (SFI and SFII), WHO Motor Milestones (WHO-Motor)) in 1,311 children 6–42 months in Bogota, Colombia. However, their validity in these circumstances is unknown. Multi-dimensional screeners and single-domain tests (‘short tests’) are frequently used as alternatives.
In low- and middle-income countries (LIMCs), measuring early childhood development (ECD) with standard tests in large scale surveys and evaluations of interventions is difficult and expensive.
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