FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2891844700> ?p ?o ?g. }

• W2891844700 abstract "We addressed the issues related to repeated measures experimental design such as an AB/BA crossover design (where each participant uses each method) that have been neither discussed nor addressed in the software engineering literature. Firstly, there are potentially two different standardized mean difference effect sizes that can be calculated, depending on whether the mean difference is standardized by the pooled within groups variance or the within-participants variance. Hence, we provided equations for non-standardized and standardized effect sizes and explained the need for two different types of standardized effect size, one for the repeated measures and one that would be equivalent to an independent groups design. Secondly, as for any estimated parameters and also for the purposes of undertaking meta-analysis, it is necessary to calculate the variance of the standardized mean difference effect sizes (which is not the same as the variance of the study). Hence, we provided formulas for the small sample size effect size variance and the medium sample size approximation to the effect size variance, for both types of standardized effect size. We also presented the model underlying the AB/BA crossover design and provided two examples (an empirical analysis of the real data set by Scanniello, as well as simulated data) to demonstrate how to construct the two standardized mean difference effect sizes and their variances, both from standard descriptive statistics and from the outputs provided by the linear mixed model package lme4 in R. A take-home message coming from the provided equations and empirical analysis of the two examples is that crossover designs should be considered (instead of between groups design) only if: - previous research has suggested that rho is greater than zero and preferably greater than 0.25; - there is either strong theoretical argument, or empirical evidence from a well-powered study, that the period by technique interaction is negligible. Summarizing, the journal first EMSE paper (http://doi.org/10.1007/s10664-017-9574-5): - Presents the formulas needed to calculate both non-standardized mean difference effect sizes and standardized mean difference effect sizes for AB/BA crossover designs (see Section 4 and 5 of the journal first EMSE paper). - Presents the formulas needed to estimate the variances of the non-standardized and standardized effect sizes which in the later cases need to be appropriate for the small to medium sample sizes commonly used in software engineering crossover designs (see Section 5 of the EMSE paper). - Explains how to calculate the effect sizes and their variances both from the descriptive statistics that should be reported from crossover experiments and from the raw data (see Section 6 of the EMSE paper). It is worth mentioning that we based our formulas on our own corrections to the formulas presented earlier by Curtin et al. (http://doi.org/10.1002/sim.1205). Our corrections for the variances of standardized weighted mean difference of an AB/BA cross-over trial were accepted by the author of the original formulas (Curtin), submitted jointly as a letter to Editor of Statistics in Medicine to assure the widespread (also beyond the software engineering domain) adoption of the corrected formulas, and accepted (http://doi.org/10.1002/sim.7379). We proposed an alternative formulation of the standardized effect size for individual difference effects that is comparable with the standardized effect size commonly used for pretest/posttest studies. We also corrected the small sample size and moderate sample size variances reported by Curtin et al. for both the individual difference effect size and the standardized effect size comparable to independent groups trials, showing the derivation of the formulas from the variance of a t-variable. Using these results, researchers can now correctly calculate standardized effect size variances, allowing the calculation of confidence intervals for AB/BA cross-over trials, which in turn provides a direct link to null hypothesis testing and supports meta-analysis. Meta-analysts can now validly aggregate together results from independent groups, pretest/posttest and AB/BA cross-over trials. Last but not least, the presented contributions allow corrections of previously reported results." @default.
• W2891844700 created "2018-09-27" @default.
• W2891844700 creator A5012102325 @default.
• W2891844700 creator A5081451369 @default.
• W2891844700 date "2018-05-01" @default.
• W2891844700 modified "2023-09-26" @default.
• W2891844700 title "[Journal First] Effect Sizes and their Variance for AB/BA Crossover Design Studies" @default.
• W2891844700 cites W2101012923 @default.
• W2891844700 hasPublicationYear "2018" @default.
• W2891844700 type Work @default.
• W2891844700 sameAs 2891844700 @default.
• W2891844700 citedByCount "0" @default.
• W2891844700 crossrefType "proceedings-article" @default.
• W2891844700 hasAuthorship W2891844700A5012102325 @default.
• W2891844700 hasAuthorship W2891844700A5081451369 @default.
• W2891844700 hasConcept C105795698 @default.
• W2891844700 hasConcept C121955636 @default.
• W2891844700 hasConcept C122507166 @default.
• W2891844700 hasConcept C129848803 @default.
• W2891844700 hasConcept C144133560 @default.
• W2891844700 hasConcept C152587130 @default.
• W2891844700 hasConcept C154945302 @default.
• W2891844700 hasConcept C196083921 @default.
• W2891844700 hasConcept C28804328 @default.
• W2891844700 hasConcept C33923547 @default.
• W2891844700 hasConcept C41008148 @default.
• W2891844700 hasConcept C44249647 @default.
• W2891844700 hasConcept C99476002 @default.
• W2891844700 hasConceptScore W2891844700C105795698 @default.
• W2891844700 hasConceptScore W2891844700C121955636 @default.
• W2891844700 hasConceptScore W2891844700C122507166 @default.
• W2891844700 hasConceptScore W2891844700C129848803 @default.
• W2891844700 hasConceptScore W2891844700C144133560 @default.
• W2891844700 hasConceptScore W2891844700C152587130 @default.
• W2891844700 hasConceptScore W2891844700C154945302 @default.
• W2891844700 hasConceptScore W2891844700C196083921 @default.
• W2891844700 hasConceptScore W2891844700C28804328 @default.
• W2891844700 hasConceptScore W2891844700C33923547 @default.
• W2891844700 hasConceptScore W2891844700C41008148 @default.
• W2891844700 hasConceptScore W2891844700C44249647 @default.
• W2891844700 hasConceptScore W2891844700C99476002 @default.
• W2891844700 hasLocation W28918447001 @default.
• W2891844700 hasOpenAccess W2891844700 @default.
• W2891844700 hasPrimaryLocation W28918447001 @default.
• W2891844700 hasRelatedWork W163958306 @default.
• W2891844700 hasRelatedWork W1996843362 @default.
• W2891844700 hasRelatedWork W2002036973 @default.
• W2891844700 hasRelatedWork W2003202105 @default.
• W2891844700 hasRelatedWork W2021767778 @default.
• W2891844700 hasRelatedWork W2038413835 @default.
• W2891844700 hasRelatedWork W2050083379 @default.
• W2891844700 hasRelatedWork W2052492289 @default.
• W2891844700 hasRelatedWork W2063641276 @default.
• W2891844700 hasRelatedWork W2133084664 @default.
• W2891844700 hasRelatedWork W2228176122 @default.
• W2891844700 hasRelatedWork W2285305693 @default.
• W2891844700 hasRelatedWork W2412439801 @default.
• W2891844700 hasRelatedWork W2729122905 @default.
• W2891844700 hasRelatedWork W2735181364 @default.
• W2891844700 hasRelatedWork W2887834142 @default.
• W2891844700 hasRelatedWork W2902450261 @default.
• W2891844700 hasRelatedWork W2983184714 @default.
• W2891844700 hasRelatedWork W2998544656 @default.
• W2891844700 hasRelatedWork W3105976344 @default.
• W2891844700 isParatext "false" @default.
• W2891844700 isRetracted "false" @default.
• W2891844700 magId "2891844700" @default.
• W2891844700 workType "article" @default.