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Development of an instrument based on the theory of planned behavior variables to measure factors influencing Iranian adults' intention to quit waterpipe tobacco smoking.

ABSTRACT: Background:Theory of planned behavior (TPB) is one of the most widely used theoretical frameworks to explain addictive behaviors, such as tobacco smoking. The aim of this study is to develop and validate an instrument based on TPB variables to measure factors influencing Iranian rural adults' intention to quit waterpipe tobacco smoking. Methods:This study was performed on a sample of rural adult waterpipe consumers living in two villages in Shiraz, Southern Iran. In the beginning, the initial items of instrument were extracted from the literature review and interviews with 20 waterpipe consumers. After that, face validity and qualitative content validity of the items were appraised. To measure quantitative content validity index (CVI) and the content validity ratio (CVR), a panel of experts reviewed the items. In addition, the exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were applied to characterize the construct validity of the instrument. Finally, Cronbach's alpha coefficient and intraclass correlation coefficient (ICC) were computed. Results:CVI and CVR of items were within the ranges of 0.89-0.95 and 0.85-0.96, respectively. EFA indicated the Kaiser-Meyer-Olkin (=0.71) and Bartlett's test of sphericity was significant (=912.36, df=105, p<0.0001). Principal component analysis revealed that 15 items could be grouped into four subscales that accounted for 64.97% of the variance. Based on CFA, two items were deleted. CFA results showed that the remained data were fit to the model. The Cronbach's alpha and ICC of subscales were, respectively, in the ranges of 0.72-0.87 and 0.64-0.82. Finally, a 13-item instrument with four subscales was confirmed. Conclusions:The findings reveal that the developed TPB instrument is a reliable and valid scale to identify the determinants of the intention to quit waterpipe smoking among Iranian rural adults.

SUBMITTER: Mirzaei N

PROVIDER: S-EPMC6767482 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Development of an instrument based on the theory of planned behavior variables to measure factors influencing Iranian adults' intention to quit waterpipe tobacco smoking.

Mirzaei Nasim N Dehdari Tahereh T Taghdisi Mohammad Hossein MH Zare Najaf N

Psychology research and behavior management 20190924

<h4>Background</h4>Theory of planned behavior (TPB) is one of the most widely used theoretical frameworks to explain addictive behaviors, such as tobacco smoking. The aim of this study is to develop and validate an instrument based on TPB variables to measure factors influencing Iranian rural adults' intention to quit waterpipe tobacco smoking.<h4>Methods</h4>This study was performed on a sample of rural adult waterpipe consumers living in two villages in Shiraz, Southern Iran. In the beginning, ...[more]

PMID: 31576183

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Project description:BACKGROUND:Providing sickness certification is a decision that primary care physicians make on a daily basis. The majority of sickness certification studies in the literature involve a general assessment of physician or patient behaviour without the use of a robust psychological framework to guide research accuracy. To address this deficiency, this study utilized the Theory of Planned Behaviour (TPB) to specifically gauge the intention and other salient predictors related to sickness certification prescribing behaviour amongst primary care physicians. METHODS:A cross-sectional study was conducted among N =?271 primary care physicians from 86 primary care practices throughout two states in Malaysia. Questionnaires used were specifically developed based on the TPB, consisting of both direct and indirect measures related to the provision of sickness leave. Questionnaire validity was established through factor analysis and the determination of internal consistency between theoretically related constructs. The temporal stability of the indirect measures was determined via the test-retest correlation analysis. Structural equation modelling was conducted to determine the strength of predictors related to intentions. RESULTS:The mean scores for intention to provide patients with sickness was low. The Cronbach ? value for the direct measures was good: overall physician intent to provide sick leave (0.77), physician attitude towards prescribing sick leave for patients (0.77) and physician attitude in trusting the intention of patients seeking sick leave (0.83). The temporal stability of the indirect measures of the questionnaire was satisfactory with significant correlation between constructs separated by an interval of two weeks (p?<?0.05). Attitudes and subjective norms were identified as important predictors in physician intention to provide sick leave to patients. CONCLUSION:An integrated behavioural model utilizing the TPB could help fully explain the complex act of providing sickness leave to patients. Findings from this study could assist relevant agencies to facilitate the creation of policies that may help regulate the provision of sickness leave and alleviate the work burden of sickness leave tasks faced by physicians in Malaysia.

Project description:BackgroundFemale genital cutting (FGC) is still among the most common harmful traditional practices, especially in Africa and Asia. Despite the existence of rich evidence on the prevalence of FGC, information about the primary target audiences' (girls') intention toward FGC is limited. Therefore, this study aimed to identify the predictors of primary school girls' behavioral intention toward female genital cutting.MethodsAn institution-based cross-sectional study was conducted from May 08 to 28, 2019 in Dunna district, South Ethiopia. A two-stage sampling technique was used to select 354 uncircumcised female students. A self-administered pre-tested structured questionnaire was used for data collection. Data were entered into Epi data manager version 4.0.2 and exported to STATA version 16.0. Descriptive analyses such as frequency, percentage, mean and standard deviation were performed as necessary. Univariable and multivariable linear regression analyses were conducted to identify predictors of primary school girls' intention to experience FGC.ResultsThe mean age of the respondents was 13.09±1.69 years with an age range of 10 to 18 years. Of the 354 respondents, 156 (44.1%) intended to experience FGC. The model accounted for 76.58% of the variance in primary school girls' intention to experience FGC. Among socio-demographic characteristics, mothers' educational level of ≤8 grade (β = 1.95, p<0.001) and the age of the respondents (β = -0.23, p = 0.036) predicted primary school girls' intention toward FGC. Among the constructs of the theory of planned behavior (TPB), direct perceived behavioral control (β = 0.47, p = 0.015), indirect perceived behavioral controls (β = 0.05, p = 0.002), and direct subjective norms (β = 0.18, p = 0.039) predicted primary school girls' intention to experience FGC.ConclusionsIn this study, we found that primary school girls' intention toward FGC was high. The educational level of mothers and the age of the respondents had a great influence on primary school girls' intention to experience FGC. Perceived lack of power and social pressure also predicted primary school girls' intention to engage in genital cutting. The findings suggest that FGC is mainly performed by the decision of the parents irrespective of the girls' preferences. Therefore, behavioral change communication interventions such as media campaigns, peer education and community dialogue guided by the TPB for empowering girls to confront FGC and reducing the influence of referents need to be focused.

Dataset Information

Development of an instrument based on the theory of planned behavior variables to measure factors influencing Iranian adults' intention to quit waterpipe tobacco smoking.

Publications

Development of an instrument based on the theory of planned behavior variables to measure factors influencing Iranian adults' intention to quit waterpipe tobacco smoking.

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