A researcher was interested in the effect of a literature curriculum on children's reading abilities. He put the students with high English grades in the group to receive the curriculum and the children with lower grades in the group that will not receive the curriculum. This design has problems with:
A) random sampling.
B) reliability.
C) random assignment.
D) negative correlations.

Question

Quizplus · Accepted Answer

The problem described is with random assignment, not random sampling, reliability, or negative correlations. Random assignment involves allocating participants to different groups in a study in such a way that each participant has an equal chance of being placed in any group. By placing students with high English grades in one group and those with lower grades in another based on their grades, the researcher did not randomly assign participants to groups, potentially introducing bias and affecting the study's internal validity.

A Researcher Was Interested in the Effect of a Literature