Development of Pregnancy Weight Gain Control Intention Scale and its reliability and validity
10.3760/cma.j.cn115682-20230103-00018
- VernacularTitle:孕妇体重增长控制意向量表的编制及信效度检验
- Author:
Yuchen CAO
1
;
Wei FENG
;
Yali TANG
;
Ting LYU
;
Huiling WANG
;
Zhijie XU
Author Information
1. 江苏大学医学院，镇江 212013
- Keywords:
Pregnant women;
Weight control;
Theory of planned behavior;
Behavior intention;
Scale;
Reliability;
Validity
- From:
Chinese Journal of Modern Nursing
2023;29(22):2989-2994
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To develop the Pregnancy Weight Gain Control Intention Scale and test its reliability and validity.Methods:This is a cross-sectional study. The item pool of the scale was constructed based on the theory of planned behavior, literature review and semi-structured interview, and the draft of the scale was formed through expert correspondence and pre-investigation. From February to April 2022, a total of 300 pregnant women from 2 ClassⅢ Grade A hospitals in Zhenjiang were selected as research objects by convenience sampling method, and the scale was further revised through item analysis and exploratory factor analysis. From May to July 2022, a formal investigation was conducted among 350 pregnant women from 2 Class Ⅲ Grade A hospitals in Zhenjiang, and confirmatory factor analysis and reliability test were used to evaluate the reliability and validity. Two weeks after the completion of the survey, 30 pregnant women were selected for retest reliability test.Results:In the first stage of the survey, a total of 300 questionnaires were distributed, and 282 valid questionnaires were effectively collected, with an effective recovery rate of 94.00% (282/300). A total of 350 questionnaires were distributed in the second phase of the survey, and 324 valid questionnaires were effectively collected, with an effective recovery rate of 92.57% (324/350). The formal scale includes 3 dimensions and 20 items, namely behavior attitude, subjective norm and perceived behavior control. Three common factors were extracted by exploratory factor analysis, and the cumulative variance contribution rate was 80.198%. The results of confirmatory factor analysis showed that the scale structure model fit was well. The scale-level content validity index was 0.980, the item-level content validity index was 0.830-1.000, the Cronbach's α coefficient of the scale was 0.917, the split-half reliability coefficient was 0.709, and the retest reliability coefficient was 0.860.Conclusions:The Pregnancy Weight Gain Control Intention Scale has good reliability and validity, and can be used as an evaluation tool to evaluate the weight gain control intention of pregnant women.
