A standard Las Vegas slot machine does not have any set number of times it must be played before it pays out. You might win on your first try, you might win on your fifth try, or you might not win at all!

This is an example of a __________ schedule of partial reinforcement.
a. variable interval
b. fixed ratio
c. fixed interval
d. variable ratio

Answer: D

Psychology

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Research using control groups suggests that mindfulness meditation

a. does nothing better than the control condition. b. does reduce blood pressure, but has no psychological effects. c. can change how the brain functions, making people more open to positive emotions. d. can change how the brain functions, producing both positive and negative changes.

Psychology

Dr. Meredith works with clients from different cultural backgrounds who suffer from depression. Which of her clients is most likely to interpret his symptoms as being "heartbroken"?

a. Suliman, who is from Saudi Arabia c. Pepe, who is Mexican b. Yeh, who is Chinese d. Ahote, who is Hopi

Psychology