Scale Overview
The McMaster Family Assessment Device – FAD was developed by Nathan B. Epstein, Lawrence M. Baldwin, Duane S. Bishop (1983). It is designed to measure Family Functioning. The scale is intended for use with Families / Adults and Adolescents.
Scale Structure
This instrument consists of 49 items organized into 6 factors/subscales: Problem Solving, Communication, Affective Responsiveness, Affective Involvement, Behavioral Control, General Functioning.
| Factor / Subscale |
Items |
N |
| Problem Solving |
1,2,3,4,5,6 |
6 |
| Communication |
7,8,9,10,11,12,13,14,15 |
9 |
| Affective Responsiveness |
16,17,18,19,20,21 |
6 |
| Affective Involvement |
22,23,24,25,26,27,28 |
7 |
| Behavioral Control |
29,30,31,32,33,34,35,36,37 |
9 |
| General Functioning |
38,39,40,41,42,43,44,45,46,47,48,49 |
12 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Strongly agree, 2 = Agree, 3 = Disagree, 4 = Strongly disagree.
The scale includes 27 reverse-scored items to reduce acquiescence bias.
Scoring
Items are scored by subscale, with each subscale sum representing a distinct dimension.
Total scores range from 1 to 4. Interpretation guidelines:
- Healthy family functioning: 1 – 2
- Unhealthy family functioning (clinical range): 3 – 4
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Problem Solving: 0.72, Communication: 0.68, Affective Responsiveness: 0.68, Affective Involvement: 0.70, Behavioral Control: 0.75, General Functioning: 0.82, Overall: 0.93.
Administration
The scale is self-administered and typically takes approximately 10 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.