Emetophobia Questionnaire – EmetQ
A 21-item self-report questionnaire that measures the severity of emetophobia (specific fear of vomiting).
Scale Development & Technical Details
Scale Overview
The Emetophobia Questionnaire – EmetQ was developed by Mark J. Boschen & T. Riddell (2005). It is designed to measure Emetophobia severity. The scale is intended for use with Adults.
Scale Structure
This instrument consists of 21 items organized into 3 factors/subscales: Somatic Symptoms, Anxiety and Cognitions, Avoidance.
| Factor / Subscale | Items | N |
|---|---|---|
| Somatic Symptoms | 1,2,10,11 | 4 |
| Anxiety and Cognitions | 3,4,5,9,12,13 | 6 |
| Avoidance | 6,7,8,14,15,16,17,18,19,20,21 | 11 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Strongly Disagree, 2 = Disagree, 3 = Unsure, 4 = Agree, 5 = Strongly Agree.
Scoring
Items are summed to produce a total score.
Total scores range from 21 to 105. Interpretation guidelines:
- Mild Emetophobia Severity: 21 – 42
- Moderate Emetophobia Severity: 43 – 73
- Severe Emetophobia Severity: 74 – 105
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Good internal consistency.
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.