In an experiment,Dr.Fatka watches forty participants play basketball and gives each participant a rating from 1 to 10 to assess the participant's basketball ability.Dr.Fatka randomly divides the forty participants into two groups and personally teaches one group how to play basketball and the other group how to play football.Finally,Dr.Fatka watches all forty participants play basketball again and gives each participant a new rating.After looking at the data,Dr.Fatka concludes that teaching basketball is more effective than teaching football in raising the basketball ratings.This experiment is flawed because of ____.

Question

Quizplus · Accepted Answer

The experiment is flawed due to experimenter bias. Dr. Fatka personally taught one group how to play basketball, which may have caused him to unconsciously give those participants higher ratings in the post-test, leading to a biased conclusion that teaching basketball is more effective. To minimize experimenter bias, a double-blind design could have been implemented. Random sampling and correlations are not relevant to the flaw in this experiment.

In an Experiment,Dr