In both men and women, a series of contractions characterizes an orgasm
a. True
b. False
Indicate whether the statement is true or false
True
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The investigation of how behavior is strengthened by presentation of positive reinforcers (e.g., food) or withdrawal of negative reinforcers (e.g., shock) is best known as
A. classical conditioning. B. the method of savings. C. choice reaction time. D. operant conditioning.
Freud said the actions of the ego were characterized as following which principle?
A. Pleasure principle B. Ethical principle C. Morality principle D. Reality principle
Who among the following individuals belongs to the demographic with a higher risk of experiencing sleep apnea?
A) Ariel, a teenager with few friends B) Michael, a relatively inactive 25-year-old man C) Jocelyn, a middle-aged widow D) Mark, an overweight 55-year-old man
When a researcher assigns participants to either an
experimental or a control group based on their last names, systematic differences between groups are created before the experiment even begins. This is a confounding variable referred to as _____ a) observer bias. b) participant bias. c) selection bias. d) assignment bias.