For a single-sample t test with 12 participants, the degrees of freedom are
a. 10
b. 11.
c. 12.
d. unable to be determined.
b
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Which is the least common occurrence in the aging brain?
a. Alzheimer's disease and other forms of dementia b. Some decrease in the number of neurons c. Reduced blood flow to the brain d. Some decreased levels of neurotransmitters
One of the factors that increase a college student's vulnerability for developing depression is negative life events. What is another risk factor?
A. a predisposition to internalize criticism B. poor social skills C. unrealistically high expectations for academic performance D. facing new challenges and threatening situations, events, and feelings
Generalizations based on the results of a survey can be extended to _____
a. all behaviors similar to the one measured in the survey b. all populations similar to the one sampled in the survey c. only the variable measured in the survey d. both a and b
Jane maintains a rigid posture, rarely communicates, and is unresponsive to stimulation. Jane would likely be diagnosed as which type of schizophrenia?
a. disorganized b. catatonic c. paranoid d. undifferentiated