Social support scale: test-retest reliability in pregnant women and structures of agreement and disagreement

There is a growing interest in research on the association between social support and health outcomes. The objective of this study was to evaluate the reliability and structure of agreement of a social support scale. Test-retest reliability was measured in a group of pregnant women (n = 65) in a public maternity ward. Intraclass correlation coefficient (ICC) and quadractically weighted kappa (kw²) were used as agreement measures. Log-linear statistical models were fitted to describe patterns of agreement. ICC for social support score was 0.90. The kw² ranged from 0.23 to 0.70. Log-linear models that provided the best fit to the data were diagonal agreement plus linear-by-linear association and quasi-independence models. The scale was considered a reliable instrument to measure social support scale in low-income pregnant women.

Social Support; Validation Studies; Linear Models


Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz Rua Leopoldo Bulhões, 1480 , 21041-210 Rio de Janeiro RJ Brazil, Tel.:+55 21 2598-2511, Fax: +55 21 2598-2737 / +55 21 2598-2514 - Rio de Janeiro - RJ - Brazil
E-mail: cadernos@ensp.fiocruz.br