If you were a participant in a developmental study that was using a(n) __________ design, you would expect to be repeatedly observed and tested over time, often for many years

Professor Golder is studying hyperactivity in preschool-age children. She is concerned that differences in child rearing, diet, and so forth may affect her results

To minimize these potential preexisting variables, she should be sure to do which of the following? A) Use random assignment when forming her groups. B) Include an independent variable. C) Include a dependent variable. D) Assign boys to the experimental group and

According to the law of effect, a behavior is MOST likely to be stamped in, or repeated, when it is __________

a. ignored b. preceded by reinforcement c. followed by reinforcement d. accompanied by a neutral stimulus