A researcher was thinking about develop a self-traning academic writing  learning program, so people can easily get access to resources for their study.  the research team randomly sampled 30 participants, and randomly assigned them into three conditions: guided trainning, self-trainning and no training. After one semester, all participants were tested on their writing using standard test. Suppose the outcome were significant at 0.05 level, can this imply causal effect of the training program?

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter4: Writing Linear Equations
Section: Chapter Questions
Problem 14CR
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A researcher was thinking about develop a self-traning academic writing  learning program, so people can easily get access to resources for their study.  the research team randomly sampled 30 participants, and randomly assigned them into three conditions: guided trainning, self-trainning and no training. After one semester, all participants were tested on their writing using standard test. Suppose the outcome were significant at 0.05 level, can this imply causal effect of the training program?

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