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A researcher designs a study to investigate whether in-person discussions or online discussions affect student engagement in a course. After completion of the study, the researcher realizes that she used a psychology course for the in-person discussion and a biology course for the online discussion. Due to this confound, her study is low in...

A researcher designs a study to investigate whether in-person discussions or online discussions affect student engagement in a course. After completion of the study, the researcher realizes that she used a psychology course for the in-person discussion and a biology course for the online discussion. Due to this confound, her study is low in...

Ciccarelli: Psychology_5 (5th Edition)
Ciccarelli: Psychology_5 (5th Edition)
5th Edition
ISBN:9780134477961
Author:Saundra K. Ciccarelli, J. Noland White
Publisher:Saundra K. Ciccarelli, J. Noland White
Chapter1: The Science Of Psychology
Section: Chapter Questions
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**Study Design and Validity in Educational Research** A researcher designs a study to investigate whether in-person discussions or online discussions affect student engagement in a course. After completion of the study, the researcher realizes that she used a psychology course for the in-person discussion and a biology course for the online discussion. Due to this confound, her study is low in… - internal validity - test-retest reliability - external validity - inter-rater reliability This question highlights the importance of maintaining consistency in study designs to ensure valid results. The use of two different courses introduces a confounding variable, which can compromise the study's internal validity. Internal validity refers to the extent to which a study can rule out alternative explanations for its findings. In this case, the variation between the psychology and biology courses may have influenced student engagement differently, making it difficult to attribute any differences in engagement solely to the mode of discussion (in-person vs. online). **Key Concepts:** - **Internal Validity**: Ensures that the observed effects in a study are due to the manipulated variables and not other factors. - **Test-Retest Reliability**: Refers to the consistency of a measure across time. - **External Validity**: The degree to which the findings of a study generalize to other situations, people, times, and settings. - **Inter-Rater Reliability**: The extent to which different raters/observers give consistent estimates of the same phenomenon. Understanding these concepts is crucial for designing reliable and valid research studies in education and other fields.
Transcribed Image Text:**Study Design and Validity in Educational Research** A researcher designs a study to investigate whether in-person discussions or online discussions affect student engagement in a course. After completion of the study, the researcher realizes that she used a psychology course for the in-person discussion and a biology course for the online discussion. Due to this confound, her study is low in… - internal validity - test-retest reliability - external validity - inter-rater reliability This question highlights the importance of maintaining consistency in study designs to ensure valid results. The use of two different courses introduces a confounding variable, which can compromise the study's internal validity. Internal validity refers to the extent to which a study can rule out alternative explanations for its findings. In this case, the variation between the psychology and biology courses may have influenced student engagement differently, making it difficult to attribute any differences in engagement solely to the mode of discussion (in-person vs. online). **Key Concepts:** - **Internal Validity**: Ensures that the observed effects in a study are due to the manipulated variables and not other factors. - **Test-Retest Reliability**: Refers to the consistency of a measure across time. - **External Validity**: The degree to which the findings of a study generalize to other situations, people, times, and settings. - **Inter-Rater Reliability**: The extent to which different raters/observers give consistent estimates of the same phenomenon. Understanding these concepts is crucial for designing reliable and valid research studies in education and other fields.
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