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Author Question: Jack wants to test whether runners on his cross-country team improve with his new training regimen. ... (Read 65 times)

nautica902

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on: Mar 8, 2019
Jack wants to test whether runners on his cross-country team improve with his new training regimen.  He measures their run times at the beginning of the season and again at the end of the season.  Runners in Jack's study improving their times due to running generally and not necessarily due to the new regimen is an example of which of the following threats?
◦ History
◦ Selection
◦ Maturation
◦ Instrumentation
Educational Research: Competencies for Analysis and Applications ¦ Mills, Gay ¦ 11th Edition
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Marked as best answer by nautica902 on Mar 8, 2019

mcni194

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Reply #1 on: Mar 8, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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nautica902

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Reply 2 on: Mar 8, 2019
Excellent

elyse44

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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