Which of the following types of psychoactive drugs increase activity of the nervous system, resulting in heightened alertness, arousal, and euphoria?

For 6-year-old Emmanuel, which of the following fine motor tasks is developmentally appropriate?

a. Writing in complete sentences b. Being able to spell multi-syllable words c. Writing in cursive d. Writing the letters of the alphabet, writing his name, and writing numbers from 1 to 10

How do social psychologists formulate hypotheses and theories?

a. They are inspired by previous theories and research. b. They disagree with a previous researchers' interpretations of his or her study. c. They construct hypotheses and theories based on personal observations in everyday life. d. all of the above