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Page 115
... internal validity and external validity . 6-11 . Identify and briefly describe eight major threats to the internal validity of an experiment . 6-12 . Identify and briefly describe five major threats to the external validity of an ...
... internal validity and external validity . 6-11 . Identify and briefly describe eight major threats to the internal validity of an experiment . 6-12 . Identify and briefly describe five major threats to the external validity of an ...
Page 165
... internal validity and external validity . Internal validity refers to the condition that observed differ- ences on the dependent variable are a direct result of manipulation of the inde- pendent variable , not some other variable . In ...
... internal validity and external validity . Internal validity refers to the condition that observed differ- ences on the dependent variable are a direct result of manipulation of the inde- pendent variable , not some other variable . In ...
Page 166
... internal validity , while at the same time maintaining a degree of realism necessary for generalizability . In the pages to come many threats to internal and external validity will be discussed . Some extraneous variables are definite ...
... internal validity , while at the same time maintaining a degree of realism necessary for generalizability . In the pages to come many threats to internal and external validity will be discussed . Some extraneous variables are definite ...
Contents
Selection and Definition of a Problem | 19 |
Preparation and Evaluation of a Research Plan | 49 |
Selection of a Sample | 65 |
Copyright | |
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Abstracts achievement administered analysis of covariance analysis of variance appropriate attitudes behavior cluster sampling compared concerning concurrent validity conducted Content validity control group design correlation coefficient defined degrees of freedom dependent describe determine difference discussed educational research effect evaluation example experimental designs experimental studies factors formula generalizability historical research identified independent variable indicates individual inferential statistics instrument interaction internal validity interview investigated involved major median method normally distributed null hypothesis number of subjects observed person population possible posttest scores pretest problem procedures purpose questionnaire questions random randomly assigned references related literature relationship study reliability represent research hypothesis research plan research report research studies responses review of related scale self-concept set of scores sources specific standard deviation standard error statistical stratified sampling subgroups teachers technique test of significance tion treatment Type I error usually versus words z score ΣΧ