How many symptom groups are there in PTSD?
A) 4
B) 5
C) 3
D) 2
Answer: A
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Which of the following researchers proposed the hierarchy of needs?
a. Ekman b. Lange c. Masters and Johnson d. Maslow
When Schaie tested adult intelligence using a cross-sequential research design, he found
a gain until the late 50s in all but one ability. moderately large decrements in all areas from age 40 to age 50. stability until the mid-30s and decline thereafter. that beyond age 60, only some abilities decrease.
A non-parametric index for scorer agreement when the scores are nominal or ordinal is provided by
a. coefficient alpha. b. KR-20. c. Cohen’s kappa. d. Spearman Brown.
The difference threshold is defined as the degree of change in a stimulus level that is required in order for a person to detect a change __________ of the time
a) 25 percent b) 75 percent c) 50 percent d) 100 percent