Research DesignsSAGE Publications, 1981 M09 1 - 80 páginas Author Paul E. Spector provides a clear introduction to the principles of experimental and non-experimental design, including single group design, pre-test, post-test designs, and factorial designs. Spector also covers hierarchical designs, multivariate designs, the Solomon four group design, panel designs, and designs with concomitant variables. |
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absenteeism analysis of variance analyzing ANOVA assignment of subjects assigns subjects basic behavior between-subjects bias chapter characteristics compared comparison complex conclusions concomitant variable conducted confounding variables constant control group correlational designs covariate cross-sectional dependent difficult discussed divorce ent variable equivalent error variance example experimental design external validity factorial design goal half the subjects Hawthorne effects hypotheses income independent variable indicate instrument reactivity interac intrinsic motivation investigator level of measurement levels limited Log-Linear Models main effects males manipulation matching methods Models monograph multiple regression multivariate no-fault divorce nonexperimental design nonexperimental study number of subjects observations occurred one-group particular period possible pretest-posttest design problem procedures random assignment random error randomly relationship reliability represent research design research question sample scores significant social sciences Solomon four-group design Spector statistical statistically adjusted structure subjects receive suicide tion treatment conditions treatment groups trend two-group design values