In deciding whether or not to pool the variances in calculating a t score, one should consider
a. the differences in the sample variances.
b. the differences in the sample sizes.
c. both a and b
d. neither a nor b
C
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According to the textbook, which of the following factors is NOT likely to motivate people to help?
a. feeling a connection to the person in need b. previous experiences of helping others c. the perception of yourself as a sad, unfortunate person d. seeing other people engaged in helping others
What should be taken into account when diagnosing most child and adolescent disorders?
What will be an ideal response?
Why are so many affluent youths troubled?
What will be an ideal response?
The first Homo sapiens appeared between _________ years ago
a. 4 million and 5 million b. 1 million and 2 million c. 300,000 and 500,000 d. 100,000 and200,000