Interpersonal Check List – ICL
Measures interpersonal behavior and personality traits across the eight octants of the interpersonal circumplex.
Scale Development & Technical Details
Scale Overview
The Interpersonal Check List – ICL was developed by Rolfe LaForge, Richard F. Suczek, Timothy Leary (1955). It is designed to measure Interpersonal behavior and personality traits. The scale is intended for use with Adults.
Scale Structure
This instrument consists of 128 items organized into 8 factors/subscales: Managerial-Autocratic (AP), Competitive-Exploitive (BC), Blunt-Aggressive (DE), Skeptical-Distrustful (FG), Modest-Self-effacing (HI), Docile-Dependent (JK), Cooperative-Overconventional (LM), Responsible-Overgenerous (NO).
| Factor / Subscale | Items | N |
|---|---|---|
| Managerial-Autocratic (AP) | 1,2,3,31,32,33,34,63,64,65,66,95,96,97,98,127 | 16 |
| Competitive-Exploitive (BC) | 4,5,6,7,35,36,37,38,67,68,69,70,99,100,101,102 | 16 |
| Blunt-Aggressive (DE) | 8,9,10,11,39,40,41,42,71,72,73,74,103,104,105,106 | 16 |
| Skeptical-Distrustful (FG) | 12,13,14,15,43,44,45,46,75,76,77,78,107,108,109,110 | 16 |
| Modest-Self-effacing (HI) | 16,17,18,47,48,49,50,79,80,81,82,111,112,113,114,128 | 16 |
| Docile-Dependent (JK) | 19,20,21,22,51,52,53,54,83,84,85,86,115,116,117,118 | 16 |
| Cooperative-Overconventional (LM) | 23,24,25,26,55,56,57,58,87,88,89,90,119,120,121,122 | 16 |
| Responsible-Overgenerous (NO) | 27,28,29,30,59,60,61,62,91,92,93,94,123,124,125,126 | 16 |
Response Format
Respondents rate each item using a dichotomous Yes/No format.
Scoring
Items are scored by subscale, with each subscale sum representing a distinct dimension.
Total scores range from 0 to 16. Interpretation guidelines:
- Low/Adaptive representation of the trait: 0 – 4
- Moderate representation of the trait: 5 – 8
- High/Rigid representation of the trait: 9 – 16
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Not specified in source text.
Administration
The scale is self-administered and typically takes approximately 15 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.