Once you have the significance value of the t-test, it is beneficial to calculate the effect size. Cohen’s d is a measure of effect size. How is it calculated?
A. (mean 2 – mean 1) / mean of the standard deviation
B. (mean 2 – mean 1) × mean of the standard deviation
C. (mean 2 + mean 1) – mean of the standard deviation
D. (mean 2 / mean 1) + mean of the standard deviation
Answer: A
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An interview survey of parents' opinions about different methods of teaching math would not be recommended mainly because
a. the questionnaire would be a more appropriate procedure. b. the study has limited generalizability. c. most parents would not have knowledge about methods of teaching math. d. it would require considerable training on the part of the interviewer.
Answer the following statement(s) true (T) or false (F)
A weighted mean should be used when the “weights” are not equal.
A least-restrictive environment:
A. provides students with disabilities with specially trained teachers, assistive technologies, and access to other appropriate resources. B. ensures appropriate segregation of children with disabilities in each school and in every state. C. creates an atmosphere in which students with disabilities are not inappropriately segregated. D. allows students with disabilities to be educated by their parents at home.
Answer the following statement(s) true (T) or false (F)
. Autoethnography is the study of one’s own culture and how the self is a part of the culture.