During which phase of the human sexual response cycle does a series of muscular contractions pulsate through the genital area?

Which of the following is more apt to show deterioration with age?

a) Short-term memory b) Processing speed c) Efficiency of the executive control functions in working memory d) Both b and c

Changes in subjects' behavior caused by the unintended influence of an experimenter's actions is referred to as

a. researcher bias. b. the field experiment effect. c. research participant bias. d. the extraneous effect.