The author uses this true experiment design type most often.
a. pre-test, post-test control group
b. post-test only control group
c. one-shot post-test
d. Solomon four-group design
b. post-test only control group
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When determining the pooled population variance estimate in a t test for independent means:
A) the variance of at least one of the original populations must be known (as opposed to estimated), but the other can be estimated from sample scores B) the variance of BOTH of the original populations must be known, as opposed to estimated C) the estimates based on each of the samples are averaged in such a way as to give more influence to the estimate based on more participants D) the scores from both samples are combined to form a single sample, and the estimated variance is figured in the usual way, but using this combined sample
A belief that an older adult is cute and could not possibly abuse drugs may cause a doctor to not diagnose or misdiagnose a drug problem. This is an example of
A. a positive environmental condition. B. a negative environmental condition. C. a positive bias. D. a negative bias.
Which of the following is NOT a reason given by parents for preferring to home-school their children?
a. Concern about the school environment b. The desire to provide religious or moral instruction c. The cost of public education d. Dissatisfaction with the academic instruction available at traditional schools
Which of the following can make it difficult to control a nation’s health care costs?
a. ?uneducated consumers b. ?an oversupply of nurses c. ?an undersupply of doctors d. ?centralized planning and budgeting e. ?the presence of many different health insurance providers