For the diagnosis of bipolar II disorder, a person must have experienced both a ___ and a ___.
A. Manic episode; hypomanic episode.
B. Hypomanic episode; major depressive episode.
C. Manic episode; major depressive episode.
D. Major depressive episode; psychotic episode.
Answer: B. Hypomanic episode; major depressive episode.
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Laura recently applied for a new job at a funeral home and also has recurring fantasies of sex with a female corpse. Laura is a: a. Necrophiliac
b. Frotteur. c. Voyeur. d. Nymphomaniac.
A principal components analysis was done on these variables. Here are some of the results. How many components/factors does this suggest might be useful? It may help to make a scree plot to answer this question.
Importance of components: Comp.1 Comp.2 Comp.3 Comp.4 Comp.5 Comp.6 Standard deviation 9.0945941 7.3488015 5.7974591 4.65682297 4.62559118 2.03515823 Proportion of Variance 0.3801942 0.2482401 0.1544949 0.09968236 0.09834977 0.01903861 Cumulative Proportion 0.3801942 0.6284343 0.7829293 0.88261162 0.98096139 1.00000000 a. Definitely one factor. The first component accounts for the largest proportion of variance. b. Definitely two factors. There are six components, and 1/6 is 17%, and only components account for more than this (so only two have an eigen value greater than 1). c. Definitely three factors because the elbow in the screen plot is after three components. d. It is not clear from this how many factors there are. The researcher should try EFA with several numbers of factors.