Sue, an instructor, wonders whether using a red pen to correct papers is really necessary, as it has always seemed rather harsh to her. When her students complete a pretest, she randomly assigns them to a "Red Pen" group and a "Gold Pen" group, corrects their papers using the corresponding colored pens, and returns the students' papers. After her students complete the real exam, Sue compares the
average scores of the Red and Gold groups. This is an example of a(n) ____.
a. basic analysis of covariance experiment
b. randomized block with homogenous groups experiment
c. 2 x 2 factorial experiment
d. basic two group post-test only randomized experiment
d
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A clinic offers free HIV testing two evenings each week so that infection may be detected as early as possible. The clinic’s program is an example of ______ prevention.
A. secondary B. primary C. positive D. tertiary
The strength of a relationship between two variables is indicated by the ____ of the correlation coefficient
a. number b. mode c. sign d. median
The characteristic fissures of the cerebral cortex are evident by which month of pregnancy?
A) 1st B) 3rd C) 7th D) 9th
After filling out a personality test, students were given individual personality profiles. Most said that their profiles were fairly good descriptions of themselves, and they were amazed to discover that they had all received the same profile. This illustrates one of the main criticisms of the __________ approach.
A. psychodynamic B. trait C. cognitive behavioral D. humanistic psychology