College Alcohol Problems Scale – Revised (CAPS-r)

Abstract

The College Alcohol Problems Scale – Revised (CAPS-r) is a concise, psychometrically sound instrument designed to assess alcohol-related problems experienced by college students. It was developed as an evolution of the original College Alcohol Problems Scale (CAPS), aiming to provide a reliable and valid measure suitable for high-volume, low-cost data collection.

The primary utility of the CAPS-r lies in facilitating routine epidemiological surveillance, program evaluation, and monitoring of negative drinking consequences across diverse college populations. It is structured as a two-factor instrument measuring both personal and social consequences of alcohol use over the past year.

Keywords

Alcohol use, College students, Alcohol problems, Negative consequences, Screening tool, Psychometrics, Substance abuse, Factor analysis, CAPS.

Authors

Maddock, J.E., Laforge, R. G., Rossi, J.S., O’Hare, T., Maddock, Jay.

Purpose

The core purpose of the CAPS-r is to provide a brief, efficient, and reliable measure of negative consequences stemming from alcohol consumption among students in higher education settings. It functions as a crucial instrument for both clinical screening and large-scale public health research initiatives.

Its brevity enables institutions to conduct routine assessments and monitoring, supporting effective program evaluation concerning campus alcohol intervention strategies. The scale focuses specifically on problems experienced within the past year as a direct result of drinking alcoholic beverages, allowing for timely intervention and data collection for epidemiological surveillance.

Construct

The CAPS-r measures the multi-dimensional construct of alcohol-related problems, defined by the negative consequences experienced by an individual due to their drinking behavior over a specified period. The instrument is structured around a two-factor model, distinguishing between two major classes of consequences.

These two factors represent distinct domains of impairment: Personal Problems (e.g., mood disturbances, self-perception issues) and Social Problems (e.g., risky behavior, legal issues, unplanned sexual activity). This structure allows researchers to differentiate between internal psychological distress and external behavioral or interpersonal consequences related to alcohol misuse.

Validity

The validity of the CAPS-r has been robustly established through rigorous psychometrics testing, confirming its appropriateness for the target population. Specifically, the scale demonstrated strong external validity, indicating that scores on the CAPS-r accurately correlate with other established measures of alcohol misuse and related behavioral outcomes.

Furthermore, structural validity was confirmed through statistical analyses, ensuring that the items accurately reflect the underlying theoretical two-factor structure (Personal vs. Social problems). This solid foundation in validity ensures that the scale measures what it intends to measure within the college demographic, supporting its use in both research and practical intervention settings.

Reliability

The CAPS-r exhibits high internal consistency, a key measure of reliability, suggesting that the items within the scale are highly correlated and consistently measure the same underlying construct. This consistency is vital for ensuring the stability and trustworthiness of the data collected, especially in high-stakes assessment environments.

As a revised instrument, the CAPS-r maintains the reliable qualities of the original College Alcohol Problems Scale (CAPS) while offering enhanced psychometric properties, making it a reliable tool for repeated use in longitudinal studies or routine screening and monitoring of student health.

Factor Analysis

Confirmatory Factor Analysis (CFA) was employed during the validation of the CAPS-r. The results indicated that the model fit well across all measures of model fit for the hypothesized two-factor structure, confirming the distinct nature of the Personal and Social problems subscales.

Crucially, additional analyses demonstrated that the factor structure of the CAPS-r was invariant across gender. This invariance ensures that the scale measures the construct of alcohol-related problems equivalently for both male and female college students, thereby increasing its generalizability and utility in diverse student samples for accurate CFA comparison.

Instrument

Test Type: Self-report questionnaire / Brief Screening tool

Format: Short, reliable two-factor instrument utilizing an ordered response scale.

Language Available: English (Primary validation language).

Population Group: College students / Young adults enrolled in higher education.

Age Group: Typically 18–25 years.

Population Details: Individuals enrolled in higher education settings who consume alcoholic beverages.

Test Methodology: Assesses the frequency of negative consequences experienced over the past year using a 6-point ordinal response scale.

Keywords

Alcohol misuse, Student health, Epidemiology, Drinking consequences, Psychometrics, Program evaluation, College surveillance, Screening.

Authors

Author ORCID Identifier: Not provided in source.

Affiliation Email addresses: Not provided in source.

Correspondence Address: Not provided in source.

Permissions & Fee and Test Year

The original conceptualization of the scale, CAPS, which forms the basis for the CAPS-r, was published in 2001. The scale is widely used in academic and public health settings for non-commercial research and epidemiological surveillance purposes.

Information regarding current usage permissions, specific test year of the revision (CAPS-r), and associated fees should be sought directly from the primary author, Jay Maddock, or the publishing journal, Addictive Behaviors.

Reference’s

The primary reference detailing the development and validation of the scale’s precursor and framework is:

• Maddock, J.E., Laforge, R. G., Rossi, J.S. & O’Hare, T. (2001). The college alcohol problems scale. Addictive Behaviors, 26, 385-398.

Items of the College Alcohol Problems Scale – Revised (CAPS-r)

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

Use the scale below to rate HOW OFTEN you have had any of the following problems over the past year as a result of drinking alcoholic beverages.

Scale 1: Personal Problems

1. Feeling sad, blue, or depressed
2. Nervousness, irritability
3. Caused you to feel bad about yourself
4. Problems with appetite or sleeping

Scale 2: Social Problems

1. Engaged in unplanned sexual activity
2. Drove under the influence
3. Did not use protection when engaging in sex
4. Illegal activities associated with drug use

Responses:

1. Never
2. Yes, but not in the past year
3. 1-2 times
4. 3-5 times
5. 6-9 times
6. 10 or more times