Intention to Quit Smoking Scale: Development and Validation

Year 2024, Volume: 13 Issue: 2, 626 - 634, 29.06.2024

Sait Söyler , Mehmet Yorulmaz

https://doi.org/10.37989/gumussagbil.1366436

Abstract

Smoking cessation efforts are made in many countries and the results of these efforts should be measured. Therefore, there is a need for a short, feasible and validated scale that can measure the intention to quit smoking. The purpose of this study is to investigate the psychometric properties of the “Intention to Quit Smoking Scale (IQSS)”. Validity and reliability properties of the scale were examined. A total of 497 people were included in the study. First, 20 candidate items were prepared based on literature review and expert opinions and the scale with candidate items were subjected to a pilot test. The dimensional structure was determined statistically using confirmatory factor analysis and confirmed by confirmatory factor analysis. Cronbach’s α coefficient, CR and AVE values were calculated to examine internal consistency, composite reliability and convergent validity. A scale with one factor consisting of eight items was obtained. The fit indices of the single factor structure were at an acceptable level (X2/df 1.77, GFI 0.94, AGFI 0.88, CFI 0.98, NFI 0.97, RMSEA 0.079). Cronbach's alpha for IQSS was 0.943. CR was 0.95 and AVE was 0.96. The test-retest consistency of the scale was high (r=0.856). Correlations with “Smoking Cessation Success Prediction Scale” and its sub-dimensions showed that the scale provided concurrent validity (r=0.669; 0.698; 0.721 respectively). The IQSS is a short, reliable and valid scale that can measure the intention to quit smoking at the time of measurement and it can be easily used in future studies.

Keywords

Smoking, Smoking Cessation, Validation Study, Psychometrics

Sigarayı Bırakma Niyeti Ölçeği: Geçerlilik ve Güvenilirlik Çalışması

Abstract

Birçok ülkede sigara bıraktırma çalışmaları yapılmaktadır ve bu çalışmaların sonuçlarının ölçülmesi gerekmektedir. Bu nedenle sigarayı bırakma niyetini ölçebilecek kısa, uygulanabilir ve geçerliliği sağlanmış bir ölçeğe ihtiyaç vardır. Bu çerçevede, bu çalışmanın amacı "Sigarayı Bırakma Niyeti Ölçeği (SBNÖ)"nin psikometrik özelliklerini incelemektir. Ölçeğin geçerlilik ve güvenilirlik özellikleri incelenmiştir. Çalışmaya toplam 497 kişi dahil edilmiştir. İlk olarak, literatür taraması ve uzman görüşlerine dayanarak 20 aday madde hazırlanmış ve aday maddelerin yer aldığı ölçek pilot teste tabi tutulmuştur. Doğrulayıcı faktör analizi kullanılarak boyutsal yapı istatistiksel olarak belirlenmiş ve doğrulayıcı faktör analizi ile doğrulanmıştır. İç tutarlılık, bileşik güvenilirlik ve yakınsak geçerliliği incelemek için Cronbach's α katsayısı, CR ve AVE değerleri hesaplanmıştır. Sekiz maddeden oluşan tek faktörlü bir ölçek elde edilmiştir. Tek faktörlü yapının uyum indeksleri kabul edilebilir düzeydedir (X2/df 1,77, GFI 0,94, AGFI 0,88, CFI 0,98, NFI 0,97, RMSEA 0,079). IQSS için Cronbach's alpha değeri 0,943'tür. CR 0,95 ve AVE 0,96'dır. Ölçeğin test-tekrar test tutarlılığı yüksektir (r=0,856). “Sigarayı Bırakma Başarısı Öngörü Ölçeği” ve alt boyutları ile korelasyonlar ölçeğin bağlam geçerliliğini sağladığını göstermiştir (sırasıyla r=0,669; 0,698; 0,721). SBNÖ, ölçüm anında sigarayı bırakma niyetini ölçebilen kısa, güvenilir ve geçerli bir ölçektir ve gelecekteki çalışmalarda kolaylıkla kullanılabilir.

Keywords

Sigara, Sigarayı Bırakma, Validasyon Çalışması, Psikometri

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