Inventory of Religious Belief – IRB

Q: How many questions does the Inventory of Religious Belief – IRB have?

The Inventory of Religious Belief – IRB contains 15 items and takes approximately 4 minutes to complete.

Q: How is the Inventory of Religious Belief – IRB scored?

Scores range from 15 to 75. Interpretation levels: Low Orthodoxy / Low Religiosity (15-34), Moderate Orthodoxy / Moderate Religiosity (35-55), High Orthodoxy / High Religiosity (56-75).

Q: Is the Inventory of Religious Belief – IRB free?

Yes, this assessment is completely free. You will receive your results immediately after completion, with an optional AI-powered personalized interpretation.

Mohammed looti

Scale Development & Technical Details

Scale Overview

The Inventory of Religious Belief – IRB was developed by Daniel G. Brown and Warner L. Lowe (1951). It is designed to measure Orthodox Christian Religious Belief. The scale is intended for use with Adults and college students.

Scale Structure

This instrument consists of 15 items.

Response Format

Respondents rate each item using a custom response format.

Response anchors: 1 = Strongly disagree, 2 = Disagree, 3 = Not sure, 4 = Agree, 5 = Strongly agree.

The scale includes 7 reverse-scored items to reduce acquiescence bias.

Scoring

Items are summed to produce a total score.

Total scores range from 15 to 75. Interpretation guidelines:

Low Orthodoxy / Low Religiosity: 15 – 34
Moderate Orthodoxy / Moderate Religiosity: 35 – 55
High Orthodoxy / High Religiosity: 56 – 75

Psychometric Properties

Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of High internal consistency (split-half reliability of .90+ reported in original studies).

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.