In the posttest-only control group design,the treatment effect (TE)is obtained by ________. A)TE= O₁- O₂ B)TE= (O₁- O₂)_-(O₃- O₄) C)TE= (O₂- O₁)_-(O₄- O₃) D)TE= O₁

Question

Quizplus · Accepted Answer

In a posttest-only control group design, the treatment effect is calculated by comparing the posttest scores of the treatment group (O1) and the control group (O2), hence TE = O1 - O2.

In the Posttest-Only Control Group Design,the Treatment Effect (TE)is Obtained