A key aspect of an experiment that is missing in other research designs is
A)description of the phenomena of interest.
B)explanation of why a relationship exists.
C)prediction of the effects of differences in variable on another.
D)random assignment.

Question

Quizplus · Accepted Answer

Random assignment is a key aspect of an experiment that is missing in other research designs. This is because in an experiment, participants are randomly assigned to different groups (e.g. experimental group and control group) to ensure that any observed effects are not due to pre-existing differences between the groups. This allows for causal inference to be made, which is not possible in other research designs where variables cannot be manipulated or controlled.

A Key Aspect of an Experiment That Is Missing in Other