In the formula that computes a t value, what does s_1^2 represent?
a. scores for Group 1
b. mean for Group 1
c. number of participants for Group 1
d. variance for Group 1
Ans: d
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Which of the following is not a principle of participatory action research?
A. It is transformative. B. It is emancipatory. C. It is social. D. It is theoretical.
A researcher sampled 16 couples and measured the mean difference in their marital satisfaction. Each couple was paired and the differences in their ratings (on a 7-point scale) were taken. If the mean difference in satisfaction ratings for this sample was 1.8 ± 2.0 (MD ± SD), then what is the decision at a .05 level of significance?
A. Satisfaction ratings do not significantly differ, t(14) = 0.90. B. Satisfaction ratings do not significantly differ, t(15) = 0.90. C. Satisfaction ratings significantly differ, t(14) = 3.60. D. Satisfaction ratings significantly differ, t(15) = 3.60.
The percentage of preschool and kindergarten teachers who are female is:
a. about 70%. b. about 98%. c. about 10%. d. Steadily increasing from a low of 80% to 93% in the past few years.
Wise, Darling-Hammond, McLaughlin, and Bernstein identified five conclusions relative to teacher evaluation including ______.
A. walk-through observations should be about 50% of the total observations B. quality evaluation models have at least two evaluators observe each teacher C. the system must be congruent with the background and personality of both evaluator and teacher D. teacher involvement in and responsibility for the process improves the quality of teacher evaluation