Dataset Information

Factorial validity and invariance of four psychosocial constructs of colorectal cancer screening: does screening experience matter?

ABSTRACT: Few studies have examined the psychometric properties and invariance of scales measuring constructs relevant to colorectal cancer screening (CRCS). We sought to: (i) evaluate the factorial validity of four core constructs associated with CRCS (benefits, barriers, self-efficacy, and optimism); and (ii) examine measurement invariance by screening status (currently screened, overdue, never screened).We used baseline survey data from a longitudinal behavioral intervention trial to increase CRCS among U.S. veterans. Respondents were classified as currently screened (n = 3,498), overdue (n = 418), and never screened (n = 1,277). The measurement model was developed using a random half of the sample and then validated with the second half of the sample and the full baseline sample (n = 5,193). Single- and multi-group confirmatory factor analysis was used to examine measurement invariance by screening status.The four-factor measurement model demonstrated good fit. Factor loadings, item intercepts, and residual item variance and covariance were invariant when comparing participants never screened and overdue for CRCS, indicating strict measurement invariance. All factor loadings were invariant among the currently screened and overdue groups. Only the benefits scale was invariant across current screeners and never screeners. Non-invariant items were primarily from the barriers scale.Our findings provide additional support for the construct validity of scales of CRCS benefits, barriers, self-efficacy, and optimism. A greater understanding of the differences between current and never screeners may improve measurement invariance.Measures of benefits, barriers, self-efficacy, and optimism may be used to specify intervention targets and effectively assess change pre- and post-intervention across screening groups.

SUBMITTER: Murphy CC

PROVIDER: S-EPMC3858498 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Factorial validity and invariance of four psychosocial constructs of colorectal cancer screening: does screening experience matter?

Murphy Caitlin C CC McQueen Amy A Bartholomew L Kay LK Del Junco Deborah J DJ Coan Sharon P SP Vernon Sally W SW

Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 20130920 12

<h4>Background</h4>Few studies have examined the psychometric properties and invariance of scales measuring constructs relevant to colorectal cancer screening (CRCS). We sought to: (i) evaluate the factorial validity of four core constructs associated with CRCS (benefits, barriers, self-efficacy, and optimism); and (ii) examine measurement invariance by screening status (currently screened, overdue, never screened).<h4>Methods</h4>We used baseline survey data from a longitudinal behavioral inter ...[more]

PMID: 24057575

Similar Datasets

Project description:IntroductionObesity affects 15.7% of U.S. preschoolers, with higher rates among low-income and Spanish-speaking populations. Food, physical activity, and sleep parenting practices, referred to collectively as obesity-related parenting practices, are linked with children's risk of obesity and are a common target in family-based obesity interventions. Yet, there is no brief, validated measure of obesity-related parenting practices that is appropriate for use in intervention studies and for diverse audiences. This study tests the factorial validity of a brief measure of obesity-related parenting and measurement invariance of the English and Spanish versions of the scale, as well as among mothers and fathers.MethodsParents of children enrolled in Head Start (n=578; 500 mothers and 78 fathers) completed a brief survey of food (7 items), physical activity (5 items), and sleep parenting (3 items) in fall of 2017 and 2018. Scale items were drawn from existing measures and the evidence base, initially drafted in English, and then translated to Spanish. One parent per family completed the scale independently in English (n=448) or Spanish (n=130). A confirmatory factor analysis framework was adopted to test a 3-factor model for the total sample. Multi-group structural equation modeling was used to assess measurement invariance of the scale by the language of administration (English or Spanish) and among mothers and fathers separately.ResultsResults supported a 3-factor model of obesity parenting with a single factor each for food, physical activity, and sleep parenting. There was statistically significant measurement invariance across all groups (p<0.05). Internal consistency was adequate across factors (α=0.65-0.80).ConclusionsThis brief obesity-parenting scale demonstrates adequate factorial validity in English and Spanish and among mothers and fathers. This measure has been integrated into an intervention, and future work will test sensitivity to change.

Dataset Information

Factorial validity and invariance of four psychosocial constructs of colorectal cancer screening: does screening experience matter?

Publications

Factorial validity and invariance of four psychosocial constructs of colorectal cancer screening: does screening experience matter?

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets