What is developmental psychology? A. the study behavior across the life span

B. the study of behavior in a longitudinal survey

C. the history of psychology

D. psychological theory

Below is a description of a resource that you're considering using for a research paper. as you read the description, keep in mind what you've learned about historical thinking skills and use those skills in evaluating whether or not to use the source.

Wich characteristics make the long ballot ineffective

The two-factor theory of emotion was proposed by