Meaningful change definitions

Autor: Gjalt-Jorn Peters, Stefan L. K. Gruijters
Přispěvatelé: Section Applied Social Psychology, RS: FPN WSP II, Section General Psychology, RS-Research Line General psychology (part of IIESB program), Section Methodology & Statistics, RS-Research Line Methodology & statistics (part of IIESB program)
Jazyk: angličtina
Rok vydání: 2022
Předmět:
meaningful change definitions
Operations research
ACCURACY
Psychological intervention
bepress|Social and Behavioral Sciences|Psychology|Quantitative Psychology
Plan (drawing)
Effect size
PsyArXiv|Social and Behavioral Sciences|Health Psychology
03 medical and health sciences
0302 clinical medicine
STATISTICAL POWER
practical significance
PSYCHOLOGICAL-RESEARCH
smallest effect size of interest
Humans
030212 general & internal medicine
Study planning
Applied Psychology
intervention research
HEALTH-STATUS
030505 public health
Data Collection
sample size planning
Public Health
Environmental and Occupational Health

General Medicine
General Chemistry
DIFFERENCE
Test (assessment)
PsyArXiv|Social and Behavioral Sciences
Intervention (law)
bepress|Social and Behavioral Sciences|Psychology|Health Psychology
Sample size determination
Research Design
Sample Size
Intervention research
bepress|Social and Behavioral Sciences
A priori and a posteriori
PsyArXiv|Social and Behavioral Sciences|Quantitative Methods
DISPLAY
0305 other medical science
Psychology
PARAMETER-ESTIMATION
Zdroj: Psychology & Health, 37(1), 1-16. Routledge/Taylor & Francis Group
Gruijters, S L K & Peters, G J 2022, ' Meaningful change definitions : Sample size planning for experimental intervention research ', Psychology & Health, vol. 37, no. 1, pp. 1-16 . https://doi.org/10.1080/08870446.2020.1841762
Psychology & Health, 37(1), 1-16. TAYLOR & FRANCIS LTD
ISSN: 0887-0446
DOI: 10.1080/08870446.2020.1841762
Popis: Experimental tests of interventions need to have sufficient sample size to constitute a robust test of the intervention's effectiveness with reasonable precision and power. To estimate the required sample size adequately, researchers are required to specify an effect size. But what effect size should be used to plan the required sample size? Various inroads into selecting the a priori effect size have been suggested in the literature-including using conventions, prior research, and theoretical or practical importance. In this paper, we first discuss problems with some of the proposed methods of selecting the effect size for study planning. We then lay out a method for intervention researchers that provides a way out of many of these problems. The proposed method requires setting a meaningful change definition, it is specifically suited for applied researchers interested in planning tests of intervention effectiveness. We provide a hands-on walk through of the method and provide easy-to-use R functions to implement it.
Databáze: OpenAIRE
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