Stress can produce direct physiological effects, such as which of the following?
A. elevated blood pressure
B. psychological disorders
C. decreased hormonal activity
D. increases in immune system functioning
Answer: A
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Which of the following is true of the characteristic curve for a "good" test item?
a. It is normally distributed. b. It is bimodal and positively skewed. c. It has a gradual, positive slope. d. It is negatively accelerated.
Which explanation has not been offered for the modest relationship between income and happiness?
a. People engage in both upward and downward social comparisons. b. Subjective well-being depends on self-efficacy. c. Satisfaction is based upon the level of success to which one is accustomed. d. Everyone has a different baseline level of happiness.
Research has found that age and relationship length are both positively related to intimacy and commitment
a. True b. False Indicate whether the statement is true or false
Which type of schedule arranges reinforcement on the basis of average time elapsed since the last reinforcement?
A) fixed-ratio B) variable-interval C) variable-ratio D) continuous