Sexual Ideology Instrument – SII
Measures attitudes toward the tenets of three sexual ideologies (Traditional Romantic, Modern Naturalistic, and Abstinence) and related controversial topics.
Scale Development & Technical Details
Scale Overview
The Sexual Ideology Instrument – SII was developed by Ilsa L. Lottes (1983). It is designed to measure Sexual Ideology. The scale is intended for use with Adults.
Scale Structure
This instrument consists of 44 items organized into 14 factors/subscales: Gender Role Equality, Body-Centered Sexuality – Scale 1, Body-Centered Sexuality – Scale 2, Body-Centered Sexuality – Scale 3, Body-Centered Sexuality – Scale 4, Power of Sexual Emotions – Scale 1, Power of Sexual Emotions – Scale 3, Coital Focus, Love Need in Sex – Scale 1, Love Need in Sex – Scale 2, Abortion, Gender Genetic Differences, Pornography, Homosexuality.
| Factor / Subscale | Items | N |
|---|---|---|
| Gender Role Equality | 1,6,11,16,24,43 | 6 |
| Body-Centered Sexuality – Scale 1 | 35,40 | 2 |
| Body-Centered Sexuality – Scale 2 | 7,15,30 | 3 |
| Body-Centered Sexuality – Scale 3 | 12,13,17 | 3 |
| Body-Centered Sexuality – Scale 4 | 2 | 1 |
| Power of Sexual Emotions – Scale 1 | 28,34 | 2 |
| Power of Sexual Emotions – Scale 3 | 3,18,23,39 | 4 |
| Coital Focus | 4,19,22,44 | 4 |
| Love Need in Sex – Scale 1 | 5,9,20,21,33,41 | 6 |
| Love Need in Sex – Scale 2 | 8,10,25,31,32,36,37,38,42 | 9 |
| Abortion | 29 | 1 |
| Gender Genetic Differences | 27 | 1 |
| Pornography | 26 | 1 |
| Homosexuality | 14,38 | 2 |
Response Format
Respondents rate each item using a 5-point Likert scale (1 = Strongly Disagree to 5 = Strongly Agree).
The scale includes 22 reverse-scored items to reduce acquiescence bias.
Scoring
Items are scored by subscale, with each subscale sum representing a distinct dimension.
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Cronbach's alpha ranges from .46 to .86 for the various subscales.
Administration
The scale is self-administered and typically takes approximately 30 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.