Related Experiment Video
Updated: Feb 7, 2026

A Neuronal and Astrocyte Co-Culture Assay for High Content Analysis of Neurotoxicity
Published on: May 5, 2009
Content overlap analysis of 64 (hypo)mania symptoms among seven common rating scales
Adrian A Chrobak1, Marcin Siwek2, Dominika Dudek3
1Department of Psychiatry, Jagiellonian University Medical College, Kraków, Poland.
Objectives:
Fried () quantified the overlap of items among seven widely used depression rating scales. The analysis revealed substantial heterogeneity of the depressive syndromes and a low overlap among the scales. To our best knowledge, there are no studies evaluating the content overlap of (hypo)mania scales. The goal of our study, therefore, is to quantify the overlap of items among seven widely used (hypo)manic scales, implementing the methodology developed by Fried ().
Methods:
Seven commonly used (hypo)manic scales underwent content analysis. Symptom overlap was evaluated with the use of the Jaccard index (0 = no overlap, 1 = full overlap). In case of every scale, rates of idiosyncratic symptoms and rates of specific versus compound symptoms were calculated.
Results:
The seven scales gathered 64 hypo(manic) symptoms. The mean overlap among all of the instruments was low (0.35), the mean overlap of each scale with all others ranged from 0.29 to 0.48, and the overlap among individual scales ranged from 0.20 to 0.65. Thirty-six percent of symptoms appeared only on one scale. Only 6% of the symptoms appeared on all of the instruments.
Conclusions:
We have shown that using (hypo)manic scales as interchangeable measurements may be problematic.
More Related Videos
06:40A Robust Method for the Large-Scale Production of Spheroids for High-Content Screening and Analysis Applications
Published on: December 28, 2021
06:52Laboratory Scale Slow Cook-Off Testing of Rocket Propellants: The Combustion Rate Analysis of a Slowly Heated Propellant CRASH-P Test
Published on: February 6, 2021
Related Concept Videos
Mania and Antimanic Drugs: Overview
Common Ion Effect
¹H NMR: Interpreting Distorted and Overlapping Signals
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
pH Scale
Concentration and Rate Law
For example, in a generic reaction aA + bB ⟶ products, where a and b are stoichiometric coefficients, the rate law can be written as:
Diabetes: Symptoms, Diagnosis, and Complications