Because infant scores do not tap the same dimensions of intelligence measured at older ages, they are conservatively labeled __________ rather than IQs

______ contains well-formed syllables that sound remarkably like language.

A. Telegraphic speech B. Cooing C. Chattering D. Canonical babbling

A clinical psychologist wants to test a treatment to reduce the self-injury behavior of an autistic child. She faces an ethical dilemma of needing to remove a potentially beneficial treatment to establish its effectiveness. In order to conduct an experiment that would allow causal inferences but also eliminate her ethical dilemma, the psychologist should conduct

A. a multiple-baselines design. B. a case study. C. an ABAB design. D. a longitudinal design.