Answer
The psychologist should divide the girls and boys in two groups. After dividing them into two groups, he should randomly allot both the methods to the boys’ group. Similarly, he should randomly assign both the methods to the girls’ group. In this randomized block design, the boys and girls are randomly assigned to both the methods. So, the gender variability on the response variable will not bother the experiment.
Work Step by Step
In the above solution, there are two diagrams of a randomized block design for each design, that is, for the boys’ group and for the girls’ group. Both designs are divided into two groups, the first one with the new teaching method and the second one with the traditional teaching method. Then, they both are compared to each other.
