A research design that rules out alternative explanations of findings by randomly assigning participants to one of two groups is known as ___________.
A) Experimental design
B) Cross-sectional design
C) Longitudinal design
D) Case study

Question

Quizplus · Accepted Answer

Randomly assigning participants to groups in an experimental design allows researchers to manipulate the independent variable and control for alternative explanations of findings. Cross-sectional design involves comparing groups of different ages at a single point in time, longitudinal design involves studying the same group of participants over an extended period, and case studies involve in-depth analysis of unique individuals or groups.

A Research Design That Rules Out Alternative Explanations of Findings