Physical Sciences and Mathematics Commons^™

Generalizability Of Effect Sizes Within Aviation Research: More Samples Are Needed, Rian Mehta, Stephen Rice, Scott Winter, Tyler Spence, Maarten Edwards, Karla Candelaria-Oquendo

International Journal of Aviation, Aeronautics, and Aerospace

It is often the case that researchers attempt to generalize findings from a single convenience sample to the population. They may also wish to make the claim that the sample effect sizes they discover are reasonably similar to the population parameters. The current study attempts to show that they can be mistaken in this assumption, and that different samples can vary dramatically in effect sizes due to myriad discrepancies, such as demographics, sample size, and random error, among other aspects of the samples. Seven hundred and eighty-one participants were recruited from Amazon’s Mechanical Turk, Florida Institute of Technology, Embry-Riddle Aeronautical …