An examination of validity and reliability of the Parental Stress Scale in a population based sample of Norwegian parents.

The parental stress scale (PSS) is a widely used instrument that assesses stress related to child rearing. Even though several studies have investigated the construct validity and reliability of the PSS, no consensus has been reached regarding which and how many of the original eighteen items that should be included, or a robust factor structure with satisfactory reliability. The present study tested the psychometric properties of the Norwegian version of the PSS and used the advantages of complementary exploratory and confirmatory factor analyses to investigate the underlying factor structure of the PSS items. Data stem from a community sample of 1096 parents from five counties in Norway with a one-year-old child. The sample was randomly split (N = 553/543), and exploratory and confirmatory analyses were performed on each of the samples. Using predefined criteria for the selection of robust items, results revealed a two-dimensional structure (Parental stressors and Lack of rewards) across 13 PSS items, displaying satisfactory reliability. Network analyses revealed differential associations within item constellations and with covariates. Implications of the findings and study limitations are discussed.