Identify the reasons why a null hypothesis might be retained
What will be an ideal response?
ANS: A null hypothesis might be retained because it is, in fact, true. The treatment may not have made any difference, or there may not be a relationship between variables. Although it’s false, the null hypothesis may be retained because of internal validity problems in the design or lack of power in the design.
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Professional dialogue increases division among teachers in the field regarding the usefulness of inclusive practices
a. True b. False
The correlation between the scores on a test of job aptitude and a measure of job proficiency is + .50 among 500 employed workers. The 50 workers who scored lowest in job proficiency and the 50 who scored highest are separated from the remainder, combined into one group, and recomputed. We should expect it to be
a. about the same as the first coefficient. b. higher than the first coefficient. c. lower than the first coefficient. d. invariable a negative value. e. different from the first coefficient, but we cannot predict if it would be higher or lower.
The extent to which the independent variable is implemented as planned is called
a. Treatment integrity b. Procedural fidelity c. Experimental control d. Both A and B e. Both A and C
Why is learning fractions particularly challenging for students with ASD?
A. It requires rote memorization. B. It requires visual processing. C. It requires reconstructive memory. D. It requires multiple procedural steps.