The aim of this study is to evaluate the effects of a WhatsApp-based and family-involved self-management education program on self-management, family support, and HbA1c levels among individuals with type 2 diabetes mellitus (T2DM).
Hypotheses:
* H1: There will be a significant difference in self-management scores between the intervention group receiving the WhatsApp-based and family-involved self-management education and the control group.
* H2: There will be a significant difference in HbA1c levels between the intervention group receiving the WhatsApp-based and family-involved self-management education and the control group.
* H3: There will be a significant difference in family support scores between the intervention group receiving the WhatsApp-based and family-involved self-management education and the control group.
This randomized controlled trial will be conducted with 44 individuals diagnosed with T2DM who meet the inclusion criteria and one family member per participant (total 88 participants). Eligible patients will be randomly assigned to either the intervention or control group using a computer-generated randomization list.
Participants (people with diabetes and their family members) in the intervention group will receive a 12-week, WhatsApp-based self-management education program. Educational modules (videos, visuals, and written materials) will be shared separately with each person with diabetes and their participating family member via WhatsApp twice a week. To reinforce learning, a five-question quiz will be sent separately to both the person with diabetes and the family member every Thursday. In addition, a brief follow-up phone call (approximately 10 minutes) will be conducted once a week only with the person with diabetes to review progress and provide feedback. Data collection will occur at baseline and at the end of the 12th week.
Participants in the control group will continue their routine outpatient follow-ups for three months and complete the same measurement tools at baseline and post-intervention.
Data will be collected using the Diabetic Participant Demographic Form, Family Member Demographic Form, Diabetes Self Management Questionnaire, Hensarling's Diabetes Family Support Scale, and the Diabetes Knowledge Scale for Adults. Statistical analyses will be performed using SPSS software. Group comparisons will be analyzed with independent t-tests or Mann-Whitney U tests, and pre-post comparisons with paired t-tests or Wilcoxon tests. A significance level of p\<0.05 will be used.