Cost and Benefit of Friendship Scale – CBFS
Measures the perceived costs and benefits of same-sex and opposite-sex friendships.
Scale Development & Technical Details
Scale Overview
The Cost and Benefit of Friendship Scale – CBFS was developed by Bleske, A.L., & Buss, D.M. (2000). It is designed to measure Perceived costs and benefits of friendship. The scale is intended for use with Adults.
Scale Structure
This instrument consists of 116 items organized into 2 factors/subscales: Benefits, Costs.
| Factor / Subscale | Items | N |
|---|---|---|
| Benefits | 1,4,5,8,12,14,15,16,17,18,19,21,23,28,29,32,33,34,37,42,45,48,50,58,61,64,66,69,72,74,76,78,79,81,82,86,88,91,92,94,98,103,104,109,110,111,112,114 | 48 |
| Costs | 2,3,6,7,9,10,11,13,20,22,24,25,26,27,30,31,35,36,38,39,40,41,43,44,46,47,49,51,52,53,54,55,56,57,59,60,62,63,65,67,68,70,71,73,75,77,80,83,84,85,87,89,90,93,95,96,97,99,100,101,102,105,106,107,108,113,115,116 | 68 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Not at all, 2 = 2, 3 = 3, 4 = Somewhat, 5 = 5, 6 = 6, 7 = Very.
Scoring
Items are scored by subscale, with each subscale sum representing a distinct dimension.
Total scores range from 116 to 812. Interpretation guidelines:
- Low perceived impact: 116 – 348
- Moderate perceived impact: 349 – 580
- High perceived impact: 581 – 812
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Cronbach's alpha values for subscales typically range from .70 to .90.
Administration
The scale is self-administered and typically takes approximately 20 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.