Chapter 7

Quantitative Research Design


Distinguishing Between Descriptive and Experimental Studies

Identifying research designs in the research literature is not always easy. Want another source of information? Two web pages provide examples to help test your knowledge of non-experimental and experimental research designs. Check out the webpage of Dr. Darrell L. Butler.  Although this site uses psychology examples, the principles for distinguishing between non-experimental (or correlational) and experimental studies remain the same.


Randomly Assign Participants to Experimental Groups

This GraphPad website provides an interactive program that will help you randomly assign participants to experimental groups. Fast and easy!


Longitudinal Design Example

This article by McEwan and Guerrero use a longitudinal design with college freshmen to examine the develop of communication skills and the formation of their social networks.