When each potential research participant in a sample population has an equal chance of being selected, it is called:
a. a control group c. an experimental group
b. random selection d. measurement error
B
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A researcher would like to compare two treatment conditions with a set of 30 scores in each treatment. If a repeated-measures design is used, the study will require n = 60 participants
Indicate whether the statement is true or false
Which is the best description of a typical short-term memory?
a. Fairly brief duration (seconds) and small capacity (seven or so items) b. Fairly long duration (minutes) and small capacity (seven or so items) c. Fairly brief duration (seconds) and large capacity (seventy or so items) d. Fairly long duration (minutes) and large capacity (seventy or so items)
In well-designed research studies, medications that enhance serotonin functioning have been found to help patients recover from episodes of depression. Given the realities of the patient uniformity myth, it would be a mistake to conclude that a. level of serotonin function is correlated with depression
b. all depressed patients will be helped by these medications. c. research can help us determine which treatments should be used for depression. d. medication can be an appropriate treatment for depression.
The concept of mental illness being a disease of the body or brain is consistent with which view of abnormal behavior?
a. ?biological b. ?cultural c. ?social d. ?psychological