Which of the following is a possible disadvantage of before after research designs?

Questions about the extent to which maladaptive habits learned in childhood can be overcome in adulthood are most directly relevant to the issue of

A. continuity or stages. B. fluid or crystallized intelligence. C. stability or change. D. nature or nurture.

The development of brain-imaging techniques has significantly advanced the study of cognitive psychology

Indicate whether this statement is true or false.