Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Reliability and Validity01:29

Reliability and Validity

12.9K
Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
12.9K
Receiver Operating Characteristic Plot01:15

Receiver Operating Characteristic Plot

569
A ROC (Receiver Operating Characteristic) plot is a graphical tool used to assess the performance of a binary classification model by illustrating the trade-off between sensitivity (true positive rate) and specificity (false positive rate). By plotting sensitivity against 1 - specificity across various threshold settings, the ROC curve shows how well the model distinguishes between classes, with a curve closer to the top-left corner indicating a more accurate model. The area under the ROC curve...
569
Sensitivity, Specificity, and Predicted Value01:13

Sensitivity, Specificity, and Predicted Value

1.9K
In healthcare diagnostics, laboratory tests play a crucial role in identifying and diagnosing a wide range of medical conditions. However, interpreting test results is not always straightforward. An abnormal test result does not always confirm the presence of a disease, just as a normal result does not guarantee its absence. To assess the reliability of these diagnostic tools, healthcare practitioners rely on two key statistical indicators: sensitivity and specificity.
Sensitivity is the...
1.9K
Kendall's Coefficient of Concordance01:20

Kendall's Coefficient of Concordance

1.3K
Kendall's Coefficient of Concordance (W), also known as Kendall's W, is a non-parametric statistical measure used to assess the agreement or concordance between multiple raters or judges when they rank a set of items. It is often used when you have ordinal data (ranks) and you want to see if there is consistency or consensus among the raters. It is widely applied in research areas such as psychology, medicine, and social sciences, where multiple judges are asked to rank or rate subjects...
1.3K
Odds Ratio01:09

Odds Ratio

2.3K
The odds ratio (OR) is a statistical measure used extensively in epidemiology and research to quantify the strength of association between exposure and outcome across different groups. Unlike relative risk, which compares the probabilities of an event occurring, the odds ratio compares the odds of an event occurring in the exposed group to the odds of it occurring in the unexposed group. The odds, in this context, are calculated as the probability of the event happening divided by the...
2.3K
Goodness-of-Fit Test01:16

Goodness-of-Fit Test

7.1K
The goodness-of-fit test is a type of hypothesis test which determines whether the data "fits" a particular distribution. For example, one may suspect that some anonymous data may fit a binomial distribution. A chi-square test (meaning the distribution for the hypothesis test is chi-square) can be used to determine if there is a fit. The null and alternative hypotheses may be written in sentences or stated as equations or inequalities. The test statistic for a goodness-of-fit test is given as...
7.1K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same journal

Nationwide, Multioperator Self-Exclusion and Psychiatric Comorbidity in Patients with Gambling Disorder: A Retrospective Chart Review Study from a Regional Treatment Unit.

Journal of addiction·2023
Same journal

Digital Dependency: How Parenting and Social Intelligence Shape Internet Addiction.

Journal of addiction·2023
Same journal

Prevalence, Reasons, Predictors, Perceived Effects, and Regulation of Alcohol Use among Children in Ghana.

Journal of addiction·2023
Same journal

Internet Addiction and Its Associated Factors among Undergraduate Students in Kathmandu, Nepal.

Journal of addiction·2023
Same journal

Magnitude and Associated Factors of Psychoactive Substance Use among Youths at Selected Administrative Towns of North Shewa Zone, Amhara Region, Ethiopia.

Journal of addiction·2023
Same journal

Problematic Use of Cannabis in Cotonou: Profile of Some Subjects Received in the Laboratory between 2016 and 2021.

Journal of addiction·2022

Related Experiment Video

Updated: Apr 29, 2026

Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education
09:00

Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education

Published on: August 16, 2024

1.3K

The AC-OK Cooccurring Screen: Reliability, Convergent Validity, Sensitivity, and Specificity.

Andrew L Cherry1, Mary E Dillon2

  • 1School of Social Work, University of Oklahoma, Tulsa Campus, Tulsa, OK 74135, USA.

Journal of Addiction
|May 15, 2014
PubMed
Summary

The AC-OK Cooccurring Screen effectively screens for mental illness and substance abuse. This reliable tool demonstrates excellent sensitivity and specificity, overcoming previous barriers to cooccurring disorder assessment.

More Related Videos

Isokinetic Robotic Device to Improve Test-Retest and Inter-Rater Reliability for Stretch Reflex Measurements in Stroke Patients with Spasticity
08:40

Isokinetic Robotic Device to Improve Test-Retest and Inter-Rater Reliability for Stretch Reflex Measurements in Stroke Patients with Spasticity

Published on: June 12, 2019

6.7K
Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers
09:16

Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers

Published on: March 14, 2018

13.0K

Related Experiment Videos

Last Updated: Apr 29, 2026

Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education
09:00

Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education

Published on: August 16, 2024

1.3K
Isokinetic Robotic Device to Improve Test-Retest and Inter-Rater Reliability for Stretch Reflex Measurements in Stroke Patients with Spasticity
08:40

Isokinetic Robotic Device to Improve Test-Retest and Inter-Rater Reliability for Stretch Reflex Measurements in Stroke Patients with Spasticity

Published on: June 12, 2019

6.7K
Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers
09:16

Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers

Published on: March 14, 2018

13.0K

Area of Science:

  • Behavioral Health
  • Psychiatry
  • Addiction Medicine

Background:

  • Universal screening for cooccurring mental illness and substance abuse is hindered by training, time, cost, and lack of effective tools.
  • A cost-efficient and valid screen is crucial for addressing these dual diagnoses.

Purpose of the Study:

  • To evaluate the reliability, factor structure, and convergent validity of the 15-item AC-OK Cooccurring Screen.
  • To determine if the AC-OK screen can overcome existing barriers in cooccurring disorder assessment.

Main Methods:

  • Principal axis factor (PAF) analysis for confirmatory factor analysis.
  • Cronbach's Alpha to assess internal consistency (reliability) of subscales.
  • Comparison with Addiction Severity Index and Client Assessment Record for sensitivity and specificity.

Main Results:

  • The AC-OK Cooccurring Screen demonstrated excellent reliability (Cronbach's Alpha .92 for substance abuse, .80 for mental health).
  • The screen showed very good convergent validity, excellent sensitivity, and sufficient specificity.
  • Data analyzed from 2,968 administrations in nine participating facilities.

Conclusions:

  • The AC-OK Cooccurring Screen is a highly useful tool for screening cooccurring disorders in behavioral health settings.
  • It effectively addresses the need for a reliable, valid, and cost-efficient screening instrument.
  • The screen's performance suggests it can overcome previous obstacles to universal cooccurring disorder assessment.