REACH Dictionary
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Effectiveness
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Methodology
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Categories
Methodology
(13)Family Processes
(1)Programs/Resources
(0)Theories
(0)Therapy & Therapeutic Techniques
(0)Health (Mental & Physical)
(0)Demographic Characteristics
(0)Military
(0)1. Minimum Acceptable Effect Size (MAES)
The minimum acceptable effect size.
Category: Methodology
Citation: Bamberger, M., Rugh, J., & Mabry, L. (2006). Real world evaluation: Working under budget, time, data, and political constraints. Sage Publications.
2. Selection Effects
Selection effects are correlations between a characteristic of the study subject and the presence of an observer, thus resulting in biased data.
Category: Methodology
Citation: Sandberg, A (n.d.). Observer selection effects [PDF file]. Retrieved from https://www.fhi.ox.ac.uk/wp-content/uploads/W6-Observer-selection-effects.pdf
3. Effectiveness
Effectiveness refers to the ability of some program or intervention to produce the desired results under real-world conditions.
Category: Methodology
Citation: Turner J.R. (2013) Efficacy. In: Gellman M.D., Turner J.R. (eds) Encyclopedia of Behavioral Medicine. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-1005-9
4. Effect Size
Effect size is a statistical tool used to measure the practical significance of a measured relationship between variables. Effect size is reported as being small, medium, or large.
Category: Methodology
5. Spillover Effects
Spillover effects refers to the extent to which events or stressors from an individual impacts family functioning and vice versa.
Category: Family Processes
6. Logistic Mixed Effects Model
"Logistic mixed models describe the relationship between a response variable and other explanatory variables that have been obtained along with the response. In an LMM, at least one of the explanatory variables must be a categorical grouping variable that represents an experimental 'unit'. Variables are either categorized as 'fixed' or 'random' factors."
Category: Methodology
Citation: Magezi, D. A. (2015). Linear mixed-effects models for within-participant psychology experiments: an introductory tutorial and free, graphical user interface (LMMgui). Frontier Psychology, 6(2). https://doi.org/10.3389/fpsyg.2015.00002
7. Halo Effect
Halo effect is a form of bias which results in an overly positive view of an individual when a few positive characteristics are emphasized over other, less positive characteristics.
Category: Methodology
Citation: Heery, E., & Noon, M. (2008a). Halo effect. In A Dictionary of Human Resource Management(2 rev. ed.). Retrieved from http://www.oxfordreference.com/view/10.1093/acref/9780199298761.001.0001/acref-9780199298761-e-521
8. Piecewise Linear Mixed Effect Models
"Linear mixed effects models track the mean response as a combination of population characteristics that are assumed to be shared by all individuals and subject-specific effects that are unique to a particular individual and account for individual level differences"
Category: Methodology
Citation: Dolman, Sarahfaye (n.d.) Piecewise linear mixed effects model in tracking the mean response trend. ChristianaCare iREACH. https://research.christianacare.org/ireach/2017/06/piecewise-linear-mixed-effects-model-in-tracking-the-mean-response-trend/
9. Fixed-Effect Models
The typical ANOVA design, in which the populations studied are (or are treated as) fixed categorical variables - users of Drugs A, B, and C, for example. The independent variables and their levels are determined (fixed) by the researcher. Also called "Model I ANOVA."
Category: Methodology
Citation: Vogt, W. P. (2005). Dictionary of statistics & methodology: A nontechnical guide for the social sciences (3rd edition).Sage Publications. https://dx.doi.org/10.4135/9781412983907
Related Terms:
10. Random Effects Model
An experimental design in which the levels of the factors are random, in the sense that they are drawn at random from a population of levels rather than fixed by an investigator. They are used when there is a large number of categories or levels of a factor.
Category: Methodology
Citation: Vogt, W. P. (2005). Dictionary of statistics & methodology: A nontechnical guide for the social sciences (3rd edition).Sage Publications.
Related Terms:
11. Direct Effects
A direct effect measures how much the dependent (outcome) variable changes when the independent (predictor) variable increases by one unit.
Category: Methodology
Citation: Pearl, J. (2022). Direct and indirect effects. In H. Geffner, R. Dechter & J. Halpern (Eds.), Probabilistic and Causal Inference: The Works of Judea Pearl (pp. 373-392). ACM Books. https://doi.org/10.1145/3501714.3501736
12. Indirect Effects
The indirect effect measures how much the independent variable influences the dependent variable through a mediator (intervening) variable.
Category: Methodology
Citation: Pearl, J. (2022). Direct and indirect effects. In H. Geffner, R. Dechter & J. Halpern (Eds.), Probabilistic and Causal Inference: The Works of Judea Pearl (pp. 373-392). ACM Books. https://doi.org/10.1145/3501714.3501736