Effect of a Health Belief Model Based Digital Nudge Intervention on Breast Cancer Screening

This study aims to evaluate the effect of a multi-component digital nudge intervention based on the Health Belief Model on breast cancer awareness, health beliefs, and screening behaviors among women aged 40-69. The study is a randomized controlled trial. The sample will consist of 64 women aged 40-69. The study will be conducted between November 2026 and July 2027 at the Şükrüpaşa Family Health Center in Erzurum, Turkey. Data will be collected using an Informed Consent Form, the Breast Cancer Awareness Scale, the Health Belief Model Scale for Mammography, and a screening behavior assessment form.

Inclusion Criteria: 1. Participants must volunteer to take part in the study 2. Participants must have no barriers to communication 3. Participants must not have been diagnosed with breast cancer 4. Participants must be women between the ages of 40 and 69 5. Participants must be able to use a smartphone 6. Participants must be able to use the WhatsApp app 7. Participants must not have had a mammogram in the past 2 years 8. Participants must not undergo regular mammograms Exclusion Criteria: 1. Participants wish to withdraw from the study 2. Participants have any barriers to communication 3. Participants have been diagnosed with breast cancer 4. Participants do not use a smartphone 5. Participants do not use the WhatsApp app 6. Participants have had a mammogram within the past 2 years 7. Participants undergo regular mammograms