The substantial cross-cultural variation that exists in physical growth and development can be attributed to all of these factors EXCEPT

Probability sampling is most likely to be used in what type of research?

a. Surveys b. Laboratory experiments c. Case studies d. Longitudinal research

What is important to take into consideration when interpreting Bayley-III scores?

A. Scores are predictive of intelligence later in childhood. B. Low scores indicate an infant has an intellectual disability. C. Low scores call for a brain scan. D. Poor scores are cause for retesting because of low test-retest reliability.