Randomized experimental studies include:
A) Random selection from the population to the sample
B) Random comparison between variables
C) The use of associational statistics
D) The use of independent attribute variables
E) Random assignment of participants to groups

Question

Quizplus · Accepted Answer

Randomized experimental studies involve randomly assigning participants to different groups or conditions in order to compare the effects of independent variables on a dependent variable. This helps to ensure that any differences between groups are due to the manipulation of the independent variable rather than other extraneous factors. Random selection (A) is important for drawing a representative sample from the population, but it is not specific to experimental designs. Random comparison (B) is not a commonly used term in experimental research and does not clearly describe an aspect of experimental design. Associational statistics (C) are typically used in non-experimental research designs, where causality cannot be established. Independent attribute variables (D) are a component of experimental design, but do not fully capture the randomized nature of the study design.

Randomized Experimental Studies Include