The socio-demographic and descriptive characteristics, as well as questions regarding medication adherence, included in the survey form will be answered through face-to-face interviews. While the participant demonstrates how to apply the inhaler, the researcher will evaluate the participant's inhaler use according to the "Metered Dose Inhaler Skill Chart," which includes the steps for inhaler use. Each participant in the experimental group will receive metered-dose inhaler training using a demonstration method. At the end of the training, participants will be given a "Metered Dose Inhaler Use Reminder Card" and a "Metered Dose Inhaler Application Video." Participants will also receive weekly reminders via telephone. After 3 months, the experimental group will be contacted via video call to demonstrate how they use the inhaler. The researcher will evaluate the participants' medication adherence scores and record them on the survey form. If any steps are incorrectly applied, the metered

The socio-demographic and demographic characteristics, as well as questions regarding medication adherence, included in the survey form will be answered through face-to-face interviews. While the participant demonstrates how to apply the inhaler, the researcher will evaluate the participant's inhaler use according to the "Metered Dose Inhaler Skill Chart," which includes the steps for inhaler use. No inhaler training or reminders will be given. Participants in the control group will be contacted by phone 3 months after the initial follow-up and asked to demonstrate how they use the inhaler. The researcher will evaluate the participants' medication adherence scores and record them on the survey form. After the data collection is complete, inhaler training will be given to the participants using a demonstration method. At the end of the training, reminder cards and a video demonstrating metered-dose inhaler application will be shared with the participants.

It is known that incorrect inhaler use is more common, especially in elderly individuals, and that common errors in metered-dose inhaler use include poor hand-mouth coordination, inability to simultaneously spray and inhale, and failure to hold the breath during inhalation. This study evaluates metered-dose inhaler use only in elderly individuals. Furthermore, not only will the inhaler application steps be evaluated, but the experimental group will also receive education and reminder interventions.

The "Measured Dose Inhaler Skill Chart" involves evaluating the participant's inhaler usage and checking the application steps. Performing all steps correctly will be considered "correct inhaler technique," while performing at least one or more steps incorrectly or not at all will be considered "incorrect inhaler technique." For each step, incorrect application or omission will receive "0 points," and correct application will receive "1 point," resulting in a total score between "0 and 10." Participants who make at least "1 mistake" or score "below 10" will be included in the study. When evaluating scores based on inhaler usage steps, "0-3" points will be considered poor, "4-6" points moderate, and "7-10" points good.

The scale consists of 5 items in total. The total test score is determined by summing the scores obtained from the items. Scores obtained from the scale range from 5 to 25. Higher total scores indicate better medication adherence, while lower total scores indicate poor medication adherence.