Which experimental design compares the outcomes of a treatment group to a non-randomly assigned control group?Review LaterPost-test only designPretest-post-test only designNon-equivalent control group designTime series design

Which experimental design includes a pretest and post-test measurement for both the control and experimental groups?Review LaterPost-test only designRandomized Control Trial (RCT)Solomon four group designFactorial design

A study is designed to test the effectiveness of a program to teach adolescents about nutrition. All research participants are randomly assigned to two groups, one which goes through the program and the other which does not. Both before and after the program, all participants take a test measuring knowledge of nutrition. What type of experimental design is this? A. posttest-only control group design B. pretest-posttest control group design C. 2 × 2 factorial design D. 2 × 4 factorial design

In ________ design a single test group or area is selected and the dependent variable is measured before the introduction of the treatment. The treatment is then introduced and the dependent variable is measured again after the treatment has been introduced. The effect of the treatment would be equal to the level of the phenomenon after the treatment minus the level of the phenomenon before the treatmentChoose one optionBefore-and-after with control designBefore-and-after without control designAfter-only with control designNone

How does the posttest-only design with non-equivalent groups rectify the disadvantages presented by the one-group posttest-only and the one-group pretest-posttest design? A. By assessing knowledge, attitude, and behaviour B. By including experimental manipulation followed by measurement C. By including a control group D. By adding a pretest to measure the dependent variable

Which of the following is an extremely important design element to have in an experimental study? Check all that apply. Treatments that are imposed by the experimenter A placebo Groups which are exactly the same size Randomized selection of participants