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[Test-retest reliability of measures of social network in the "Pró -Saúde" Study]
Rosane Harter Griep1, Chor Dóra, Eduardo Faerstein
1Departamento de Enfermagem em Saúde Pública, Escola de Enfermagem Anna Nery, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil. rogriep@br.inter.net
Objective:
To evaluate test-retest reliability of social network-related information of the" Pr -Sa de" study.
Methods:
A test-retest reliability study was conducted using a multidimensional questionnaire applied to a cohort of university employees. The same questionnaire was filled out twice by 192 non-permanent employees with two weeks apart. Agreement was estimated using kappa statistics (categorical variables), weighted kappa statistics, log-linear models (ordinal variables), and intraclass correlation coefficient (discrete variables).
Results:
Estimates of reliability were higher than 0.70 for most variables. Stratified analyses revealed no consistently varying patterns of reliability according to gender, age or schooling strata. Log-linear modelling showed that, for the study ordinal variables, the model of best fit was "diagonal agreement plus linear by linear association".
Conclusions:
The high level of reliability estimated in this study suggests that the process of measurement of social network-related aspects was adequate. Validation studies, which are currently being conducted, will complete the quality assessment of this information.
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