In Pavlov's classical procedure, the stimulus that originally elicits the reflexive behavior is

When the amount of oxytocin in a human female's blood reaches a certain threshold, the likelihood of conception is at its highest.

a. true b. false

In an effort to prevent participants in an experiment from trying to discover or confirm the researcher's predictions and motives, psychologists sometimes:

a. allow participants to consent to the study. b. treat all information as confidential. c. ask each participant to respond honestly. d. deceive participants about the true nature of the study.