Abstract

Despite widespread interest in variance in affect, basic questions remain pertaining to the relative proportions of between-person and within-person variance, the contribution of days and moments, and the reliability of these estimates. We addressed these questions by decomposing negative affect and positive affect variance across three levels (person, day, moment), and calculating reliability using a coordinated analysis of seven daily diary, ecological momentary assessment (EMA), and diary-EMA hybrid studies (across studies age = 18-84 years, total N persons = 2,103, total N observations = 45,065). Across studies, within-person variance was sizeable (negative affect: 45% to 66%, positive affect: 25% to 74%); in EMA more within-person variance was attributable to momentary rather than daily level. Reliability was adequate to high at all levels of analysis (within-person:.73-.91; between-person:.96-1.00) despite different items and designs. We discuss the implications of these results for the design of future intensive studies of affect variance.

Original languageEnglish (US)
JournalAssessment
DOIs
StateAccepted/In press - Jan 1 2018

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Analysis of Variance
Ecological Momentary Assessment

All Science Journal Classification (ASJC) codes

  • Clinical Psychology
  • Applied Psychology

Cite this

Scott, S. B., Sliwinski, M. J., Zawadzki, M., Stawski, R. S., Kim, J., Marcusson-Clavertz, D., ... Smyth, J. M. (Accepted/In press). A Coordinated Analysis of Variance in Affect in Daily Life. Assessment. https://doi.org/10.1177/1073191118799460
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abstract = "Despite widespread interest in variance in affect, basic questions remain pertaining to the relative proportions of between-person and within-person variance, the contribution of days and moments, and the reliability of these estimates. We addressed these questions by decomposing negative affect and positive affect variance across three levels (person, day, moment), and calculating reliability using a coordinated analysis of seven daily diary, ecological momentary assessment (EMA), and diary-EMA hybrid studies (across studies age = 18-84 years, total N persons = 2,103, total N observations = 45,065). Across studies, within-person variance was sizeable (negative affect: 45{\%} to 66{\%}, positive affect: 25{\%} to 74{\%}); in EMA more within-person variance was attributable to momentary rather than daily level. Reliability was adequate to high at all levels of analysis (within-person:.73-.91; between-person:.96-1.00) despite different items and designs. We discuss the implications of these results for the design of future intensive studies of affect variance.",
author = "Scott, {Stacey B.} and Sliwinski, {Martin John} and Matthew Zawadzki and Stawski, {Robert S.} and Jinhyuk Kim and David Marcusson-Clavertz and Lanza, {Stephanie Trea} and Conroy, {David E.} and Buxton, {Orfeu M.} and David Almeida and Smyth, {Joshua Morrison}",
year = "2018",
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journal = "Assessment",
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A Coordinated Analysis of Variance in Affect in Daily Life. / Scott, Stacey B.; Sliwinski, Martin John; Zawadzki, Matthew; Stawski, Robert S.; Kim, Jinhyuk; Marcusson-Clavertz, David; Lanza, Stephanie Trea; Conroy, David E.; Buxton, Orfeu M.; Almeida, David; Smyth, Joshua Morrison.

In: Assessment, 01.01.2018.

Research output: Contribution to journalArticle

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AU - Scott, Stacey B.

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AU - Kim, Jinhyuk

AU - Marcusson-Clavertz, David

AU - Lanza, Stephanie Trea

AU - Conroy, David E.

AU - Buxton, Orfeu M.

AU - Almeida, David

AU - Smyth, Joshua Morrison

PY - 2018/1/1

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N2 - Despite widespread interest in variance in affect, basic questions remain pertaining to the relative proportions of between-person and within-person variance, the contribution of days and moments, and the reliability of these estimates. We addressed these questions by decomposing negative affect and positive affect variance across three levels (person, day, moment), and calculating reliability using a coordinated analysis of seven daily diary, ecological momentary assessment (EMA), and diary-EMA hybrid studies (across studies age = 18-84 years, total N persons = 2,103, total N observations = 45,065). Across studies, within-person variance was sizeable (negative affect: 45% to 66%, positive affect: 25% to 74%); in EMA more within-person variance was attributable to momentary rather than daily level. Reliability was adequate to high at all levels of analysis (within-person:.73-.91; between-person:.96-1.00) despite different items and designs. We discuss the implications of these results for the design of future intensive studies of affect variance.

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Scott SB, Sliwinski MJ, Zawadzki M, Stawski RS, Kim J, Marcusson-Clavertz D et al. A Coordinated Analysis of Variance in Affect in Daily Life. Assessment. 2018 Jan 1. https://doi.org/10.1177/1073191118799460