Use of covariates in randomized controlled trials

G.J.P. van Breukelen; K.R.A. van Dijk

doi:10.1017/S1355617707071147

Use of covariates in randomized controlled trials

G.J.P. van Breukelen^*, K.R.A. van Dijk

^*Corresponding author for this work

Research output: Contribution to journal › Comment/Letter to the editor › Academic › peer-review

Abstract

A recent discussion in this journal illustrates some recurrentmisunderstandings about the role of covariates in randomized controlledtrials (rcts). This letter aims at clarifying this role and at pointingout a pitfall in spss repeated measures anova. We hope that our commentarywill contribute to a further improvement in the use of advanced statisticsin neuropsychology.

Original language	English
Pages (from-to)	903-904
Journal	Journal of the International Neuropsychological Society
Volume	13
Issue number	5
DOIs	https://doi.org/10.1017/S1355617707071147
Publication status	Published - 1 Jan 2007

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10.1017/S1355617707071147

Cite this

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title = "Use of covariates in randomized controlled trials",

abstract = "A recent discussion in this journal illustrates some recurrentmisunderstandings about the role of covariates in randomized controlledtrials (rcts). This letter aims at clarifying this role and at pointingout a pitfall in spss repeated measures anova. We hope that our commentarywill contribute to a further improvement in the use of advanced statisticsin neuropsychology.",

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AB - A recent discussion in this journal illustrates some recurrentmisunderstandings about the role of covariates in randomized controlledtrials (rcts). This letter aims at clarifying this role and at pointingout a pitfall in spss repeated measures anova. We hope that our commentarywill contribute to a further improvement in the use of advanced statisticsin neuropsychology.

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M3 - Comment/Letter to the editor

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JO - Journal of the International Neuropsychological Society

JF - Journal of the International Neuropsychological Society

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