A short tutorial of GPower
Susanne Mayr,Edgar Erdfelder,Axel Buchner,Franz Faul +3 more
- Vol. 3, Iss: 2, pp 51-59
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TLDR
GPower as mentioned in this paper is a free general power analysis program available in two essentially equivalent versions, one designed for Macintosh OS/OS X and the other designed for MS DOS/Windows platforms Psychological research examples are presented to illustrate the various features of the GPower software.Abstract:
The purpose of this paper is to promote statistical power analysis in the behavioral sciences by introducing the easy to use GPower software GPower is a free general power analysis program available in two essentially equivalent versions, one designed for Macintosh OS/OS X and the other for MS‐DOS/Windows platforms Psychological research examples are presented to illustrate the various features of the GPower software In particular, a priori, post‐hoc, and compromise power analyses for t‐tests, F‐tests, and χ2‐tests will be demonstrated For all examples, the underlying statistical concepts as well as the implementation in GPower will be described In the behavioral sciences, we routinely apply statistical tests, but control of statistical power cannot be taken for granted However, neglecting statistical power—the probability of rejecting false null hypotheses—can have severe consequences For example, without control of statistical power it is very difficult to interpret nonsignificant results Statistical tests can produce nonsignificant results because (a) the null hypothesis (H0) holds and is retained correctly or (b) the alternative hypothesis (H1) holds but the test has not been powerful enough to detect the deviations from H0 Obviously, there is no reasonable way to decide between interpretations (a) andread more
Citations
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An SEM Approach to Continuous Time Modeling of Panel Data: Relating Authoritarianism and Anomia
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Left–right coding of past and future in language: The mental timeline during sentence processing
Rolf Ulrich,Claudia Maienborn +1 more
TL;DR: The results of three linguistic experiments examined congruency effect when participants processed past- and future-related sentences to suggest that participants can form time-space associations during the processing of sentences, consistent with the view that time is mentally represented from left to right.
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A new model for assessing industrial worker behavior regarding energy saving considering the theory of planned behavior, norm activation model and human reliability
José Rafael Nascimento Lopes,Ricardo de Araújo Kalid,Jorge Laureano Moya Rodríguez,Salvador Ávila Filho +3 more
TL;DR: The results indicate that two factors of the adjusted SEM model are not statistically significant, contrary to what was expected by the TPB and the human reliability; therefore, these two factors should be the object of greater attention so as to influence the behavior of workers towards greater energy saving in industrial units.
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Augmented reality and pedestrian navigation through its implementation in m-learning and e-learning
TL;DR: The educational, quantitative, and qualitative evaluation of an Augmented Reality and Mobile Pedestrian Navigation app shows that it can be more effective than using similar technologies in e-learning contexts, and shows a comparison of educational results between m-learning and e- learning.
References
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Book
Statistical Power Analysis for the Behavioral Sciences
TL;DR: The concepts of power analysis are discussed in this paper, where Chi-square Tests for Goodness of Fit and Contingency Tables, t-Test for Means, and Sign Test are used.
Journal ArticleDOI
G*Power 3: A flexible statistical power analysis program for the social, behavioral, and biomedical sciences
TL;DR: G*Power 3 provides improved effect size calculators and graphic options, supports both distribution-based and design-based input modes, and offers all types of power analyses in which users might be interested.
Journal ArticleDOI
GPOWER: A general power analysis program
TL;DR: GPOWER performs high-precision statistical power analyses for the most common statistical tests in behavioral research, that is,t tests,F tests, andχ2 tests.
Book
Research Design and Statistical Analysis
Jerome L. Myers,Arnold D. Well +1 more
TL;DR: Correlation Multiple Regression Regression with Categorical Variables Appendices - Notation and Summation Operations, Expected Values and Their Applications, Matrix Algebra, Statistical Tables, Control Information for Computer Programmes for Statistical Analysis.
Journal ArticleDOI
On the relationship between task performance and associated verbalizable knowledge
TL;DR: In this paper, the authors explore the relationship between performance on a cognitive task and the explicit or reportable knowledge associated with that performance (assessed here by written post-task questionnaire) and examine how this relationship is affected by task experience, verbal instruction and concurrent verbalization.