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A group of educational researchers studied the impact of summer reading with a randomized experiment involving second-and third-graders in North Carolina. Students were randomly assigned to cither a group that was mailed one book a week for 10 weeks or a control group that was not mailed any books. Both groups were given a reading comprehension test at the start and 6. end of the summer. Third-grade girls who were mailed books showed a statistically significant increase in reading ability, but third-grade boys and second graders of both sexes did not. (a) Explain the purpose of including a control group in this experiment. The purpose of the control group is to square (h) the loct ear

Problemas

A group of educational researchers studied the impact of summer reading with a randomized experiment involving second-and third-graders in North Carolina. Students were randomly assigned to cither a group that was mailed one book a week for 10 weeks or a control group that was not mailed any books. Both groups were given a reading comprehension test at the start and 6. end of the summer. Third-grade girls who were mailed books showed a statistically significant increase in reading ability, but third-grade boys and second graders of both sexes did not. (a) Explain the purpose of including a control group in this experiment. The purpose of the control group is to square (h) the loct ear

A group of educational researchers studied the impact of summer reading with a randomized experiment involving second-and third-graders in North Carolina. Students were randomly assigned to cither a group that was mailed one book a week for 10 weeks or a control group that was not mailed any books. Both groups were given a reading comprehension test at the start and 6. end of the summer. Third-grade girls who were mailed books showed a statistically significant increase in reading ability, but third-grade boys and second graders of both sexes did not. (a) Explain the purpose of including a control group in this experiment. The purpose of the control group is to square (h) the loct ear

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Estrellamaestro · Tutor durante 5 años
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The purpose of including a control group in this experiment is to provide a baseline for comparison. The control group, which did not receive any books, allows the researchers to determine if any changes in reading ability observed in the experimental group (those who received books) are due to the intervention (receiving books) and not other factors. By comparing the results of the control group with the experimental group, the researchers can isolate the effect of the independent variable (receiving books) on the dependent variable (reading ability). This helps to ensure that the results are due to the intervention and not other confounding factors.
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