# Adaptation of the Short Version of Santa Clara Strength of Religious Faith Questionnaire in Türkiye

## TL;DR

This study adapted a short questionnaire measuring religious faith strength into Turkish and confirmed it is valid and reliable for use in Turkey.

## Contribution

The study validated the Turkish version of the Santa Clara Strength of Religious Faith Questionnaire without altering its original structure.

## Key findings

- The Turkish version of the questionnaire has high content validity with I-CVI scores between 0.87 and 1.00 and an S-CVI of 0.98.
- The scale demonstrated strong reliability with a Cronbach’s alpha of 0.860 and an Omega value of 0.866.
- Fit indices confirmed the questionnaire’s structural validity in the Turkish population.

## Abstract

The present study was conducted to adapt the short version of the Santa Clara Strength of Religious Faith Questionnaire into Turkish and to examine the validity and reliability of the scale. This methodological study was conducted between January and May 2024 with 283 individuals aged 18 and older in Turkey. Data were collected online by using “Personal Information Form” and the “Short Version of the Santa Clara Strength of Religious Faith Questionnaire”. It was found that all participants believed in God. According to the study results, item-based content validity index (I-CVI) was between 0.87 and 1.00, and the scale-based content validity index (S-CVI) was found to be 0.98. Factor loadings of the scale items vary between 0.570 and 0.840. Fit indices of the scale were calculated as follows: X2 = 9.64, df = 4 (p < 0.05), X2/df = 2.41, RMSEA = 0.071, CFI = 0.99, SRMR = 0.021, TLI = 0.98, RMR = 0.012, AIC = 31.64. The overall Cronbach’s alpha value of the scale was 0.860, and the Omega reliability value was 0.866. Short Version of the 5-item Santa Clara Strength of Religious Faith Questionnaire was validated without any changes to the original form. The Turkish version of the Short Version of the Santa Clara Strength of Religious Faith Questionnaire is a valid and reliable instrument for measuring individuals’ strength of religious faith.