Article Critique – Experimental Design
Pick articles that relate to MMA and Footballs effect(brain damage/concussions) on early
adulthood to late adulthood.
Select a peer-reviewed, experimental research study that exemplifies a two-group design (two independent
groups design, two matched groups design, or repeated measures design) and a factorial design (use
keywords method, results, and discussion in your Boolean search). These studies can be found using tools
such as the GCU Library and Google Scholar.
Write a 500-750-word paper in which you:
1.)Compare the two research designs
2.) Identify the independent variable(s), dependent variable, and any possible extraneous variable
3.) Identify main effects and interactions for the factorial design
4.) Explain if the study has a random sample and/or random assignment? Were there other limitations that
were noticed?
Sample Solution
Chronic traumatic encephalopathy (CTE) was first discovered in professional boxers after they exhibited memory impairments, mood and behavioral changes after years of boxing. However, there is now a growing acceptance that CTE can develop in athletes of other sports due to the repetitive head trauma they receive. We present a case of a middle-aged male who presented with worsening memory, poor concentration, and behavioral changes for a year. On further cognitive testing, it was revealed that he had difficulties with short-term memory and processing speed as well as difficulties in organizing and multitasking. He had been practicing mixed martial arts (MMA) for 10 years, and later was an instructor of the sport.
