A psychologist was interested in whether there was a gender difference in the use of email. She hypothesized that because women are generally better communicators than men, they would spend longer using email than their male counterparts. To test this hypothesis, the researcher sat by the email computers in her research methods laboratory and when someone started using email, she noted whether they were male or female and then timed how long they spent using email (in minutes). How should she analyse the differences in males and females? (Use the output below to help you decide.)
A. Paired t-test
B. Mann–Whitney test
C. Wilcoxon signed-rank test
D. Independent t-test
Answer: B
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Which one of the following statements is not correct?
a. A hypothesis must be testable. b. A hypothesis must have explanatory power. c. A hypothesis must be consistent with the existing body of knowledge. d. A hypothesis must be based on a well-established theory.
Which of the following statements is true?
a. Absenteeism rates are substantially higher with cohesive teams. b. Productivity is lower in cohesive teams. c. Morale is higher in cohesive teams. d. Satisfaction is lower in cohesive teams. e. Morale always suffers in cohesive teams.
Youth from culturally diverse and economically disadvantaged backgrounds are _____ in programs for the gifted and
talented. a. equally represented b. slightly overrepresented c. slightly underrepresented d. dramatically underrepresented
Which of the following issues are important to consider when administering formal speech and language tests?
A. the cultural situations, interactions, and caregivers in a student's life B. the ability of the student to interact for a prolonged period of time C. the age of the student D. All of the answers are correct.