Objective:

To analyze the dimensional structure of a scale of quality of life at work, used in employees of private companies, aiming at expanding its scope of use.

Method:

Methodological and quantitative study to analyze the dimensional structure of a quality of life scale at work with workers from private companies in the city of Teresina, Piauí, Brazil. The scale has 48 items with responses on a Likert scale, with 5 points ranging from “totally agree” to “totally disagree”. The data were collected by properly trained research assistants. Exploratory Factor Analysis and Confirmatory Factor Analysis were performed to verify the dimensional structure of the scale.

Results:

2380 people participated, 52.6% (1251) of the female gender, single 50.2% (1195) and having completed high school 31.7% (754). Cronbach's Alpha with the 48 items was 0.954. The Kaiser-Meyer-Olkin test was greater than 0.7 and the Bartlett sphericity test showed statistical significance. The items were excluded: P8; P13; P15; P19; P24; P30; and P39. The exploratory factor analysis identified eight factors, with 60.4% of the explained total variance. In the analysis of the model's fit, the results were unsatisfactory. Variables P7, P14 and P44 were removed. The proposed new model presented adequate results for all criteria: GFI = 0.943; CFI = 0.957; CMIN / DF = 4,369; and RMSEA = 0.038.

Conclusion:

The results of the new (adjusted) model showed that the scale is reliable and valid to be used in the context of the private sector.

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