Rasch analysis of the Perceived Stress Scale: Transformation from an ordinal to a linear measure

被引：28

作者：

Medvedev, Oleg N. ^{[1
]}

Krageloh, Christian U. ^{[1
]}

Hill, Erin M. ^{[2
]}

Billington, Rex ^{[1
]}

Siegert, Richard J. ^{[1
]}

Webster, Craig S. ^{[3
]}

Booth, Roger J. ^{[3
]}

Henning, Marcus A. ^{[3
]}

机构：

[1] Auckland Univ Technol, Auckland, New Zealand

[2] West Chester Univ, W Chester, PA USA

[3] Univ Auckland, Auckland, New Zealand

来源：

JOURNAL OF HEALTH PSYCHOLOGY | 2019年 / 24卷 / 08期

关键词：

measurement; Perceived Stress Scale; psychometrics; Rasch analysis; stress; CONSTRUCT-VALIDITY; QUESTIONNAIRE; ADULTS; MODEL; GENDER; SCORES;

D O I：

10.1177/1359105316689603

中图分类号：

B849 [应用心理学];

学科分类号：

040203 ;

摘要：

Rasch analysis was conducted to enhance the precision of the widely used 10-item Perceived Stress Scale using two datasets (n = 450 each) randomly selected from samples of the New Zealand general population (n = 1102), New Zealand university students (n = 479) and US university students (n = 396). The best Rasch model fit (chi(2)(27) = 29.92, p = .36), good person separation reliability (.80) and coverage (98%) of the sample by the scale items were achieved when locally dependent items were combined into subtests. These findings support reliability and internal structural validity of the 10-item Perceived Stress Scale. The instrument precision can be further improved using the ordinal-to-linear conversion tables published here.

引用

页码：1070 / 1081

页数：12

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