Question #12300024

identify the threat to internal validity in this study HELP!? PLEASE? PUHLEASE?

a psychologist wanted to see if a mental training course affects the ability of fire fighters to make decisions in emergency situations. 250 fire fighters were randomly selected they were split into two groups. one group took the mental training course, the other did not. after 6 weeks, both were given a simulated emergency scenario and they had to describe what decisions they would take. their answers were given a score out of 100 from experienced fire fighters. In this study, what is one possible threat to internal validity and how can it be eliminated?

2013-12-06 06:12:30

TELL US , if you have any answer

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