Which developmental approach looks at cognitive development through the lens of brain processes by considering internal mental processes focused on the neurological activity that underlies thinking, problem solving, and cognitive behavior?

Information-processing researchers focus on

A) interactions between the various core domains of thought. B) many aspects of thinking, from attention, memory, and categorization skills to complex problem solving. C) general concepts like assimilation and accommodation to describe how children think. D) learning within the zone of proximal development.

Why are no-treatment control groups problematic?

a) They do not account for individual differences in outcomes. b) They are difficult to ethically justify. c) They are not typically based upon strict protocols. d) They do not allow for random assignment.