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Observing Educational Researchers in Action
Classifying Variables that Seek Relationships
Examining Nonexperimental Research
13 other sections not shown
05 level analysis attitude boys classrooms college GPA compared computer programming Concordia University control group cooperative learning correlation coefficient criterion variable critical value degrees of freedom determine difference elementary school equal number examined experimental and control experimental design experimental group experimental studies f-Test frequency freshmen goal statements high I.Q. high school GPA high school students independent variable Inferential statistics internal validity interval scale junior high school laboratory approach lecture-programmed learning lecture-small study cluster level of significance manipulated mathematics achievement mean scores measure median Module null hypothesis persons with I.Q. posttest predictor variable pretest and posttest proportional representation quartile randomly assigned randomly divided randomly selected raw scores reject the null relationship research hypothesis Research Problem sample to treatment scattergram sections seniors sophomores standard deviation standard score Stanine statistical strategy student scores study be improved subsidy Superintendent Rachel teachers teaching test scores treatment groups Type of study z-score