. What is the null hypothesis for a Mann–Whitney U test?
A. The number of scores above and below the median are equal.
B. The ranks in two groups are equally dispersed.
C. The mean differences between two groups are equal.
D. The ranks in two groups are equal to 0.
Ans: B
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Choose the least appropriate Answer: Factors that may cause barriers between parents and teachers include
a. the issue of trust. b. differences in expertise. c. children's personalities. d. maneuvering over turf.
When adults in mainstream Western culture bring up the topic of human sexuality with teenagers, they are most likely to do it in discussions about:
a. Various species of mammals b. What actions are and are not legal c. "Saving" oneself for that "special someone" d. Sexually transmitted diseases or unwanted pregnancy
Answer the following statement(s) true (T) or false (F)
Convergent design collects quantitative and qualitative data simultaneously.
Between the ages of four and five years, most children arrive at the stage of drawing
Fill in the blank(s) with the appropriate word(s).