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Group Level Clinical Significance: An Analysis of Current Practice
(Springer, 2015)
Measures of clinical significance offer important
information about psychological interventions that cannot be
garnered from tests of the statistical significance of the change
from pretest to posttest. For example, ...
Robust tests of equivalence for k independent groups
(Wiley, 2013)
A common question of interest to researchers in psychology is the equivalence of two or more groups. Failure to reject the null hypothesis of traditional hypothesis tests such as the ANOVA F‐test (i.e., H0: μ1 = … = μ k ) ...
Testing for negligible interaction: A coherent and robust approach.
(Wiley, 2016)
Researchers often want to demonstrate a lack of interaction between two categorical predictors on an outcome. To justify a lack of interaction, researchers typically accept the null hypothesis of no interaction from a ...
The mental health status of ethnocultural minorities in Ontario and their mental health care.
(BioMed Central, 2016)
Background: Mental disorders are a leading cause of disability and early mortality. The objective of this study was to describe and compare psychosocial indicators and mental health service use among ethnoculturally diverse ...
Modeling continuous, skewed and heteroscedastic outcomes in psychology: Is generalized modeling the best 'fit'?
(Springer, 2017)
Some researchers in psychology have ordinarily relied on traditional linear models when assessing the relationship between predictor(s) and a continuous outcome, even when the assumptions of the traditional model (e.g., ...
Exploring the utility of the Multidimensional State Boredom Scale.
(Hogrefe, 2016)
Background: State boredom–the experience of boredom in the moment – is related to a number of psychosocial issues. Until the recent creation of the Multidimensional State Boredom Scale (MSBS), research was constrained by ...
Comparing pre-post change across groups: Guidelines for choosing between difference scores, ANCOVA, and residual change scores.
(2016)
Psychological researchers often investigate differences between groups in the amount of change from pre-test to post-test. For example, researchers treating a group of depressed students may wish to compare the amount of ...
The gamma generalized linear model, log transformation, and the robust Yuen-Welch test for analyzing group means with skewed and heteroscedastic data
(Taylor & Francis, 28/02/2018)
Alternatives for positively skewed and heteroscedastic data include the Yuen-Welch (YW) test, data transformations, and the generalized linear model (GzLM). Because the GzLM is rarely considered in psychology compared to ...
Psychosocial well-being over the two years following cardiac rehabilitation initiation & association with heart-health behaviors
(Elsevier, 2018-05)
The objective of this research was to track psychosocial well-being over 2 years following cardiac rehabilitation (CR) initiation, and its' association with heart-health behaviors.
Patients from 3 CR programs were approached ...
Equivalence of Population Variances: Synchronizing the Objective and Analysis
(Journal of Experimental Education, 2017)
Researchers are often interested in testing for the equivalence of population variances.
Traditional difference-based procedures are appropriate to answer questions about
differences in some statistic (e.g., variances, ...