A Practical Guide to Power Analyses of Moderation Effects in Multisite Individual and Cluster Randomized Trials
A Practical Guide to Power Analyses of Moderation Effects in Multisite Individual and Cluster Randomized Trials
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多地点个体和集群随机试验中调节效应功效分析的实用指南
DOI:
10.1080/00220973.2024.2338521
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发表时间:
2024
期刊:
影响因子:
--
通讯作者:
Sui, Ning
中科院分区:
文献类型:
--
作者:
Dong, Nianbo;Kelcey, Benjamin;Spybrook, Jessaca;Xie, Yanli;Pham, Dung;Qiu, Peilin;Sui, Ning
Multisite trials that randomize individuals (e.g., students) within sites (e.g., schools) or clusters (e.g., teachers/classrooms) within sites (e.g., schools) are commonly used for program evaluation because they provide opportunities to learn about treatment effects as well as their heterogeneity across sites and subgroups (defined by moderating variables). Despite the rich opportunities they present, a critical step in ensuring those opportunities is identifying the sample size that provides sufficient power to detect the desired effects if they exist. Although a strong literature base for conducting power analyses for the moderator effects in multisite trials already exists, software for power analysis of moderator effects is not readily available in an accessible platform. The purpose of this tutorial paper is to provide practical guidance on implementing power analyses of moderator effects in multisite individual and cluster randomized trials. We conceptually motivate, describe, and demonstrate the calculation of statistical power and minimum detectable effect size difference (MDESD) using highly accessible software. We conclude by outlining guidelines on power analysis of moderator effects in multisite individual randomized trials (MIRTs) and multisite cluster randomized trials (MCRTs).
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DOI:
10.1080/00220973.2016.1220911
发表时间:
2017
期刊:
The Journal of Experimental Education
影响因子:
--
作者:
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影响因子:
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DOI:
10.5964/meth.4003
发表时间:
2021-06-01
影响因子:
3.1
作者:
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DOI:
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发表时间:
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期刊:
The Journal of Experimental Education
影响因子:
--
作者:
Dong, Nianbo;Kelcey, Benjamin;Spybrook, Jessaca
通讯作者:
Spybrook, Jessaca
影响因子:
2.2
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Dong, Nianbo;Kelcey, Benjamin;Spybrook, Jessaca
通讯作者:
Spybrook, Jessaca