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Author Question: Laura has developed a new treatment to increase spatial ability. She randomly assigns students to ... (Read 117 times)

jessicacav

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on: Mar 8, 2019
Laura has developed a new treatment to increase spatial ability.  She randomly assigns students to either her intervention or a control condition.  In the treatment condition students engage in working puzzles for twenty minutes a day for 10 days.  Unfortunately, students do not like her intervention and refuse to do puzzles for all of the days.  When she examines post-test means on the spatial ability measure, there are no differences between her treatment and the control condition. Which of the following demonstrates a threat to validity demonstrated in this study?
◦ Instrumentation
◦ Maturation
◦ Testing
◦ Mortality
Educational Research: Competencies for Analysis and Applications ¦ Mills, Gay ¦ 11th Edition
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Marked as best answer by jessicacav on Mar 8, 2019

irishcancer18

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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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jessicacav

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Reply 2 on: Mar 8, 2019
Gracias!

sarah_brady415

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Reply 3 on: Yesterday
Wow, this really help

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