Outcome
Anxiety
For the primary outcome variable assessment, the State-Trait Anxiety Inventory (STAI) and the State Anxiety Inventory (STAI-S), developed by Spielberger, Gorsuch, and Lushene (1970)During the follow-up period, the STAI-S instrument was applied to both groups three times a week (a total of 12 assessments) over a 28-day period. In the experimental group, the application occurred after the intervention, and in the control group, after conventional treatment. The intervention and data collection were performed in a reserved room before radiotherapy sessions. The time for filling out the instruments was approximately 5 to 8 minutes before the intervention began.