Information about how to obtain the program and its documentation is provided. ![]() The primary goal of PsyScope is to give both psychology students and trained. PsyScope is available for noncommercial purposes free of charge and unsupported to the general research community. PsyScope is an integrated environment for designing and running psychology experiments on Macintosh computers. In this article, we describe the overall organization of the program, provide an example of how a simple experiment can be constructed within its graphic environment, and discuss some of its technical features (such as its underlying scripting language, timing characteristics, etc.). The standard components of a psychology experiment-groups, blocks, trials, and factors-are all represented graphically, and experiments are constructed by working with these elements in interactive windows and dialogs. PsyScope relies on the interactive graphic environment provided by Macintosh computers to accomplish this goal. The primary goal of PsyScope is to give both psychology students and trained researchers a tool that allows them to design experiments without the need for programming. read more read lessĪbstract: PsyScope is an integrated environment for designing and running psychology experiments on Macintosh computers. Electronic copies of these macros may be downloaded from the Psychonomic Society's Web archive at. ![]() We hope that this discussion and the macros will enhance the frequency of formal mediation tests in the psychology literature. After a brief overview of mediation, we argue the importance of directly testing the significance of indirect effects and provide SPSS and SAS macros that facilitate estimation of the indirect effect with a normal theory approach and a bootstrap approach to obtaining confidence intervals, as well as the traditional approach advocated by Baron and Kenny (1986). ![]() Although mediation hypotheses are frequently explored in psychological research, formal significance tests of indirect effects are rarely conducted. A necessary component of mediation is a statistically and practically significant indirect effect. The utility of mediation analysis stems from its ability to go beyond the merely descriptive to a more functional understanding of the relationships among variables. Abstract Describes the overall organization of PsyScope, an integrated computer environment for designing and running psychology experiments on Macintosh computers. Abstract: Researchers often conduct mediation analysis in order to indirectly assess the effect of a proposed cause on some outcome through a proposed mediator.
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