The following experimental design would be recommended when
(R) $\quad$ X $\quad$ Y
(R) $\quad$ --- $\quad$ Y
A) no control group is available.
B) matching is not feasible.
C) pre-existing groups must be used in a school setting.
D) a pretest may have an effect on the experimental treatment.

Question

The following experimental design would be recommended when 
(R) $\quad$ X $\quad$ Y
(R) $\quad$ --- $\quad$ Y
A) no control group is available.
B) matching is not feasible.
C) pre-existing groups must be used in a school setting.
D) a pretest may have an effect on the experimental treatment.

Quizplus · Accepted Answer

The given experimental design is suitable when a pretest may have an influence on the experimental treatment. In this design, one group (R) is given pretest and subjected to experimental treatment, and the other group (---) is not given a pretest but treated experimentally. This design helps in controlling the effect of pretest on the experiment. However, it does not address other issues like matching, control group, or pre-existing groups as specified in options A, B, and C, respectively.

The Following Experimental Design Would Be Recommended When (R) \quad

The Following Experimental Design Would Be Recommended When
(R) $\quad$