Scale Overview
The International Index of Erectile Function – IIEF-5 was developed by Rosen, R. C., Cappelleri, J. C., Smith, M. D., Lipsky, J., & Pena, B. M. (1999). It is designed to measure Erectile Dysfunction. The scale is intended for use with Adult males.
Scale Structure
This instrument consists of 5 items.
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Very low / Almost never / Extremely difficult, 2 = Low / A few times / Very difficult, 3 = Moderate / Sometimes / Difficult, 4 = High / Most times / Slightly difficult, 5 = Very high / Almost always / Not difficult.
Scoring
Items are summed to produce a total score.
Total scores range from 1 to 25. Interpretation guidelines:
- Severe Erectile Dysfunction: 1 – 7
- Moderate Erectile Dysfunction: 8 – 11
- Mild-to-Moderate Erectile Dysfunction: 12 – 16
- Mild Erectile Dysfunction: 17 – 21
- No Erectile Dysfunction: 22 – 25
Administration
The scale is self-administered and typically takes approximately 5 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.