A researcher designs a study to measure the effect of reading a digital history textbook versus a paper history textbook on reading comprehension scores for sixth graders. She is concerned that there may be an uneven distribution of participants with high reading levels in the paper textbook group, which could influence the study results. The variable of reading level would be considered a(n)1 分dependent variable.independent variable.participant variable.fixed variable.
Question
A researcher designs a study to measure the effect of reading a digital history textbook versus a paper history textbook on reading comprehension scores for sixth graders. She is concerned that there may be an uneven distribution of participants with high reading levels in the paper textbook group, which could influence the study results. The variable of reading level would be considered a(n)1 分dependent variable.independent variable.participant variable.fixed variable.
Solution
The variable of reading level in this study would be considered a participant variable. This is because it is a characteristic of the individuals participating in the study that could potentially influence the outcome, but it is not the main focus of the study. The main independent variable is the type of textbook (digital or paper), and the dependent variable is the reading comprehension scores.
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