In general, what can be said about an item analysis of a speeded test?
A. Results are often misleading and difficult to interpret.
B. Item-discrimination levels are higher for later items.
C. Item-difficulty levels are higher toward the end of the test.
D. All of these
Answer: D
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______ are measures with number scores that can be divided into smaller units.
A. Ordinal variables B. Categorical variables C. Ratio variables D. Continuous variables
Nguyen is returning to New York from a long trip to Southeast Asia. When he arrives, he feels like he could sleep for a week, has trouble remembering where he parked his car, then drops his keys when he finally finds it
Nguyen is suffering from "jet lag," a type of _________ that occurs when people travel quickly across several time zones. a. suprachiasmatic sleep pattern b. circadian rhythm. c. individual chronotype d. internal desynchronization
The fraction of the intensity by which a source of physical energy must be increased or decreased so that a difference in intensity will be perceived, is the definition of _______ _______
Fill in the blank(s) with correct word
Which of the following can be considered a symptom of major depression?
A. changed eating habits B. hallucinations C. inflated self-esteem D. racing thoughts