Author Question: Refer to Exhibit 10-10. A researcher conducted a semester-long experiment comparing two ... (Read 27 times)

pragya sharda · **on:** Jun 20, 2018

Refer to Exhibit 10-10. A researcher conducted a semester-long experiment comparing two instructional programs in math. During the administration of tests during the semester, the researcher found that about ten percent of the experimental group and about five percent of the control group were absent for each administration.

a. Regression
b. Diffusion
c. Mortality
d. Selection
e. History

Question 2

Refer to Exhibit 10-10. Students who had low scores on a reading pretest were chosen for a special instructional program. This group showed significant gains on a reading achievement test administered after a period of four months.

a. Regression
b. Diffusion
c. Mortality
d. Selection
e. History