Related Experiment Video
Updated: Jan 21, 2026

Echocardiographic Approaches and Protocols for Comprehensive Phenotypic Characterization of Valvular Heart Disease in Mice
Published on: February 14, 2017
Validity and reliability of the Heart Disease Fact Questionnaire (HDFQ): a Rasch measurement model approach
Lemye Zehirlioglu1, Hatice Mert2
1Institute of Health Sciences, Internal Medicine Nursing Doctorate Programme, Dokuz Eylül University, Izmir, 35340, Turkey.
Aim:
The aim of this study was to examine the validity and reliability of Turkish version of the Heart Disease Fact Questionnaire (HDFQ) as a measure to evaluate heart disease risk knowledge in individuals with diabetes.
Methods:
This study was conducted in the primary care clinic on 326 individuals with type 2 diabetes. The Davis Method, Confirmatory Factor Analysis (CFA) and the Rasch Measurement Model used in the validity and reliability analyses.
Results:
The validity analysis results showed Turkish version of HDFQ was content valid. The results of CFA showed the index results were very good fit. All items of the scale and the HDFQ were fit to the Rasch model and the items did not contain any differential item function. Person Separation Index showed HDFQ is reliable tool.
Conclusions:
The Rasch Model provides an alternative way in dealing with the challenges faced in classic methods and it is recommended to be used in health sciences. Thus, the results of this study are important. Results show that the Turkish version of the HDFQ can be used for determining awareness of heart disease risk as well as for assessing the effectiveness of implemented interventions among individuals with diabetes.
Related Concept Videos
Reliability and Validity
Rheumatic Heart Disease I: Introduction
Ischemic Heart Disease: Overview
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and...
Rheumatic Heart Disease III: Medical Management
Rheumatic Heart Disease IV: Nursing Management
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies

