The study is a Turkish validity and reliability study of the Laval questionnaire.

the study was planned as a student's master thesis. the whole study was carried out by us. all evaluations were completed. all analyses were completed. It is an observational study. It is a survey study.The study data were entered retrospectively.

Research İzmir Bayraklı District Health Directorate No. 1 Healthy Life Centre (1 October 2021 - 15 November 2021) and Gaziemir Municipality (15 November 2021 - 15 March 2022) was conducted. Dokuz Eylül University Ethics Committee accepted the study on 22.12.2021 with the decision number 2021/38-08. People with Body Mass Index ≥ 30 kg/m2 and who met the inclusion/exclusion criteria were included in the study. In addition to the Laval Questionnaire, the SF-12 general health quality of life questionnaire and the Obese-Specific Quality of Life Scale were used. For the adaptation of the Turkish version of the questionnaire, first, language validity was ensured by back translation method.

Inclusion Criteria:

• volunteering, being literate
• age ≥ 18 and age ≤ 75
• body mass index (BMI) ≥ 30 kg/m2
• ability to follow instructions to fill out questionnaires.

Exclusion Criteria:

• affected by psychiatric illness

body mass index (BMI) ≥ 30 kg/m2

In addition to the Laval Questionnaire, the SF-12 general health quality of life questionnaire and the Obese-Specific Quality of Life Scale were used.

Research İzmir Bayraklı District Health Directorate No. 1 Healthy Life Centre (1 October 2021 - 15 November 2021) and Gaziemir Municipality (15 November 2021 - 15 March 2022) was conducted