Hope-Focused Motivational Interviewing in Cancer Patients

Inclusion Criteria: * Being 18 years of age or older * Having a diagnosis of Stage I-III cancer according to the TNM staging system Receiving radiotherapy at the study center (including adjuvant, neoadjuvant, or definitive RT) * Being in the first week of the radiotherapy process * Being able to read and understand Turkish and communicate at a level sufficient to participate in interviews * Agreeing to attend the intervention sessions at scheduled times and providing written informed consent Exclusion Criteria: * Presence of metastatic disease (Stage IV) or recurrent cancer * Receiving concurrent chemotherapy during the radiotherapy process * Presence of severe psychiatric conditions that may interfere with participation or the safe implementation of the intervention (e.g., psychotic disorders, bipolar disorder in the manic phase, or severe major depression) * Presence of moderate to severe cognitive impairment/dementia, significant attention or concentration problems, or neurological conditions that may compromise the reliability of responses * Severe hearing or speech impairments or communication difficulties that would prevent participation in interviews or completion of questionnaires (if appropriate support cannot be provided) * Participation in another structured psychosocial intervention program (e.g., hope-based, psychoeducational, or psychotherapeutic programs) during the study period