Author Question: Refer to Exhibit 11-5. Can the results of the study be applied to elementary school students in ... (Read 109 times)

LCritchfi · **on:** Jun 20, 2018

Refer to Exhibit 11-5. Can the results of the study be applied to elementary school students in rural settings?

a. internal validity
b. external validity.

Question 2

A researcher has developed a series of in-service training programs for teachers that he believes will improve their effectiveness in the classroom. The researcher observes and compares teacher classroom behavior before and after the teachers attend the in-service training. If this design has a flaw, suggest a way(s) that you would improve it.

a. Use trained observers other than the researcher to make the before and after classroom observations.
b. Use videotapes of before and after teacher behavior and have trained observers in a blind technique evaluate the pre- and post-training tapes.
c. a or b
d. There is no serious flaw in the study. The researcher who developed the program and has an interest in its effectiveness should be the one making the observations.