A practical guide to understanding reliability in studies of within-person variability

John B. Nezlek


This article concerns how to estimate reliability (defined as the internal consistency of responses to a scale) in designs that are commonly used in studies of within-person variability. I present relevant issues, describe common errors, make recommendations for best practice, and discuss unresolved issues and future directions. I describe how to estimate the reliability of scales administered in studies in which observations are nested within persons, such as daily diary and “beeper” studies and studies of social interaction. Multilevel modeling analyses that include a measurement level can estimate the occasionlevel (e.g., days or beeps or interactions) reliability of scales. In such models, items on a scale are nested within occasions of measurement and occasions of measurement are nested within persons.
Author John B. Nezlek (Wydział Zamiejscowy w Poznaniu)
John B. Nezlek,,
- Wydział Zamiejscowy w Poznaniu
Journal seriesJournal of Research in Personality, ISSN 0092-6566, (A 35 pkt)
Issue year2017
Publication size in sheets0.5
Keywords in EnglishReliability; Multilevel modeling; Diary studies
ASJC Classification3200 General Psychology; 3207 Social Psychology
URL http://www.sciencedirect.com/science/article/pii/S009265661630068X
Languageen angielski
Nezlek J. A practical guide__all_2016.pdf 193.01 KB
Score (nominal)35
Score sourcejournalList
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.288; WoS Impact Factor: 2017 = 2.85 (2) - 2017=3.21 (5)
Citation count*129 (2021-02-24)
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