Experimental and Quasi-experimental Designs for Research |
Contents
PREFACE | 1 |
SUBJECT INDEX | 5 |
THREE TRUE EXPERIMENTAL DESIGNS 13 115 | 13 |
Copyright | |
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achieved analysis analysis of variance attitudes causal classroom comparison confounded CONTROL GROUP DESIGN correlation covariance Design 12 design of experiments differences discussion educational research effect of X employed equivalent error ex post facto experimental and control experimental control experimental design experimental effect experimental group experimental variable external factors gain hypothesis inference interaction effect internal validity interpretation interviewers involved Kempthorne Latin squares main effect matching maturation measures memory bias ment mental methods O₁ and O2 occasions occur perimental persons plau plausible rival population possible posttest scores present pretest and posttest pretest scores pretest-posttest problem procedures Psychol psychology psychotherapy pupils quasi-experimental designs quasi-experiments random assignment randomly regression Regression fallacies relevant represent research on teaching rival hypotheses rx,o sampling selection settings shift sible sources of invalidity specific Stanley statistical Table teachers ternal validity tests of significance time-series tion trol group true experiment usually