Item Response Theory for Psychometric Properties of the SNOT-22 (22-Item Sinonasal Outcome Test)

2021 ◽  
pp. 019459982110183
Author(s):  
David T. Liu ◽  
Katie M. Philips ◽  
Marlene M. Speth ◽  
Gerold Besser ◽  
Christian A. Mueller ◽  
...  
Keyword(s):  
Item Response Theory ◽  
Psychometric Properties ◽  
Item Response ◽  
Chronic Rhinosinusitis ◽  
Facial Pain ◽  
Item Discrimination ◽  
High Quality ◽  
Graded Response ◽  
Sinonasal Outcome Test ◽  
Snot 22

Objective The SNOT-22 (22-item Sinonasal Outcome Test) is a high-quality outcome measure that assesses chronic rhinosinusitis–specific quality of life. The aim of this study was to gain greater insight into the information provided by the SNOT-22 by determining its item-based psychometric properties. Study Design Retrospective cohort study. Setting Tertiary care academic centers. Methods This study used a previously described data set of the SNOT-22 completed by 800 patients with chronic rhinosinusitis. Item response theory graded response models were used to determine parameters reflecting item discrimination, difficulty, and information provided by each item toward the SNOT-22 subdomain to which it belonged. Results The unconstrained graded response model fitted the SNOT-22 data best. Item discrimination parameters and total information provided showed the greatest variability within the nasal subdomain, and the item related to sense of smell/taste demonstrated the lowest discrimination and provided the least amount of information overall. The dizziness item provided disparately lower total information and discrimination in the otologic/facial pain subdomain. Items in the sleep and emotional subdomains generally provided high discrimination. While items in the nasal, sleep, and otologic/facial pain subdomains spanned all levels of difficulty, emotional subdomain items covered higher levels of difficulty, indicating greater information provided at higher levels of disease severity. Conclusion The item-specific psychometric properties of the SNOT-22 support it as a high-quality instrument. Our results suggest the need and possibility for revision of the smell/taste dysfunction item, for example its wording, to improve its ability to discriminate among the different levels of disease burden.

scholarly journals Game Addiction Scale Assessment Through a Nationally Representative Sample of Young Adult Men: Item Response Theory Graded�Response Modeling (Preprint)

2018 ◽  
Author(s):  
Yasser Khazaal ◽  
Kyrre Breivik ◽  
Joel Billieux ◽  
Daniele Zullino ◽  
Gabriel Thorens ◽  
...  
Keyword(s):  
Item Response Theory ◽  
Psychometric Properties ◽  
Item Response ◽  
Internet Gaming Disorder ◽  
Response Theory ◽  
Dsm 5 ◽  
Internet Gaming ◽  
Game Addiction ◽  
Graded Response ◽  
Response Modeling

BACKGROUND The 7-item Game Addiction Scale (GAS) has been validated under standard confirmatory factor analysis and exhibits good psychometric properties. Whether this scale satisfies the necessary conditions for consideration by item response theory (IRT) modeling remains unknown. However, the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5) recently proposed criteria, in its section 3, to define internet gaming disorder (IGD) to promote research on this possible condition. OBJECTIVE The objective of our study was to (1) analyze GAS in the context of IRT (graded-response) modeling; (2) investigate differential item functioning (DIF), a feature of IRT modeling, in 2 subsamples; and (3) contribute to the ongoing (IGD) debate related to the validity of the DSM-5 criteria using GAS items as a proxy. METHODS We assessed 2 large representative samples of Swiss men (3320 French-speaking and 2670 German-speaking) with GAS. RESULTS All items comprised high discrimination parameters. GAS items such as relapse, conflict, withdrawal, and problems (loss of interests) were endorsed more frequently in more severe IGD stages, whereas items related to tolerance, salience (preoccupation), and mood modification (escape) were endorsed more widely among participants (including in less severe IGD stages). Several DIF effects were found but were classified as negligible. CONCLUSIONS The results of the analyses partly support the relevance of using IRT to further establish the psychometric properties of the GAS items. This study contributes to testing the validity of the IGD criteria, although cautious generalization of our findings is required with GAS being only a proxy of the IGD criteria.

Item response theory analysis of the Pain Self-Efficacy Questionnaire

2017 ◽  
Vol 14 (1) ◽  
pp. 113-117 ◽  
Author(s):  
Daniel S.J. Costa ◽  
Ali Asghari ◽  
Michael K. Nicholas
Keyword(s):  
Item Response Theory ◽  
Psychometric Properties ◽  
Item Response ◽  
Self Efficacy ◽  
Latent Variable ◽  
Response Threshold ◽  
Response Model ◽  
Graded Response Model ◽  
Response Theory ◽  
Graded Response

AbstractBackground and aimsThe Pain Self-Efficacy Questionnaire (PSEQ) is a 10-item instrument designed to assess the extent to which a person in pain believes s/he is able to accomplish various activities despite their pain. There is strong evidence for the validity and reliability of both the full-length PSEQ and a 2-item version. The purpose of this study is to further examine the properties of the PSEQ using an item response theory (IRT) approach.MethodsWe used the two-parameter graded response model to examine the category probability curves, and location and discrimination parameters of the 10 PSEQ items. In item response theory, responses to a set of items are assumed to be probabilistically determined by a latent (unobserved) variable. In the graded-response model specifically, item response threshold (the value of the latent variable for which adjacent response categories are equally likely) and discrimination parameters are estimated for each item. Participants were 1511 mixed, chronic pain patients attending for initial assessment at a tertiary pain management centre.ResultsAll items except item 7 (‘I can cope with my pain without medication’) performed well in IRT analysis, and the category probability curves suggested that participants used the 7-point response scale consistently. Items 6 (‘I can still do many of the things I enjoy doing, such as hobbies or leisure activity, despite pain’), 8 (‘I can still accomplish most of my goals in life, despite the pain’) and 9 (‘I can live a normal lifestyle, despite the pain’) captured higher levels of the latent variable with greater precision.ConclusionsThe results from this IRT analysis add to the body of evidence based on classical test theory illustrating the strong psychometric properties of the PSEQ. Despite the relatively poor performance of Item 7, its clinical utility warrants its retention in the questionnaire.ImplicationsThe strong psychometric properties of the PSEQ support its use as an effective tool for assessing self-efficacy in people with pain.

scholarly journals The Revised Mood Rhythm Instrument: A Large Multicultural Psychometric Study

2021 ◽  
Vol 10 (3) ◽  
pp. 388
Author(s):  
Melissa Alves Braga de Oliveira ◽  
Euclides de Mendonça Filho ◽  
Alicia Carissimi ◽  
Luciene Lima dos Santos Garay ◽  
Marina Scop ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Item Response Theory ◽  
Network Analysis ◽  
Psychometric Properties ◽  
Item Response ◽  
Response Theory ◽  
Item Response Theory Analysis ◽  
Increased Risk ◽  
Psychometric Analyses ◽  
Self Reporting Questionnaire

Background: Recent studies with the mood rhythm instrument (MRhI) have shown that the presence of recurrent daily peaks in specific mood symptoms are significantly associated with increased risk of psychiatric disorders. Using a large sample collected in Brazil, Spain, and Canada, we aimed to analyze which MRhI items maintained good psychometric properties across cultures. As a secondary aim, we used network analysis to visualize the strength of the association between the MRhI items. Methods: Adults (n = 1275) between 18–60 years old from Spain (n = 458), Brazil (n = 415), and Canada (n = 401) completed the MRhI and the self-reporting questionnaire (SRQ-20). Psychometric analyses followed three steps: Factor analysis, item response theory, and network analysis. Results: The factor analysis indicated the retention of three factors that grouped the MRhI items into cognitive, somatic, and affective domains. The item response theory analysis suggested the exclusion of items that displayed a significant divergence in difficulty measures between countries. Finally, the network analysis revealed a structure where sleepiness plays a central role in connecting the three domains. These psychometric analyses enabled a psychometric-based refinement of the MRhI, where the 11 items with good properties across cultures were kept in a shorter, revised MRhI version (MRhI-r). Limitations: Participants were mainly university students and, as we did not conduct a formal clinical assessment, any potential correlations (beyond the validated SRQ) cannot be ascertained. Conclusions: The MRhI-r is a novel tool to investigate self-perceived rhythmicity of mood-related symptoms and behaviors, with good psychometric properties across multiple cultures.

scholarly journals A Multidimensional Item Response Theory Model for Continuous and Graded Responses With Error in Persons and Items

2021 ◽  
pp. 001316442199841
Author(s):  
Pere J. Ferrando ◽  
David Navarro-González
Keyword(s):  
Item Response Theory ◽  
Item Response ◽  
Theory Model ◽  
Response Model ◽  
Response Theory ◽  
Continuous Response ◽  
Graded Responses ◽  
Graded Response ◽  
Continuous Responses ◽  
Differential Measurement Error

Item response theory “dual” models (DMs) in which both items and individuals are viewed as sources of differential measurement error so far have been proposed only for unidimensional measures. This article proposes two multidimensional extensions of existing DMs: the M-DTCRM (dual Thurstonian continuous response model), intended for (approximately) continuous responses, and the M-DTGRM (dual Thurstonian graded response model), intended for ordered-categorical responses (including binary). A rationale for the extension to the multiple-content-dimensions case, which is based on the concept of the multidimensional location index, is first proposed and discussed. Then, the models are described using both the factor-analytic and the item response theory parameterizations. Procedures for (a) calibrating the items, (b) scoring individuals, (c) assessing model appropriateness, and (d) assessing measurement precision are finally discussed. The simulation results suggest that the proposal is quite feasible, and an illustrative example based on personality data is also provided. The proposals are submitted to be of particular interest for the case of multidimensional questionnaires in which the number of items per scale would not be enough for arriving at stable estimates if the existing unidimensional DMs were fitted on a separate-scale basis.

Clinical Traits Characterizing an Exacerbation-Prone Phenotype in Chronic Rhinosinusitis

2019 ◽  
Vol 161 (5) ◽  
pp. 890-896 ◽  
Author(s):  
Katie M. Phillips ◽  
Eric Barbarite ◽  
Lloyd P. Hoehle ◽  
David S. Caradonna ◽  
Stacey T. Gray ◽  
...  
Keyword(s):  
Chronic Rhinosinusitis ◽  
Disease Burden ◽  
Tertiary Care ◽  
Symptom Burden ◽  
Cross Sectional ◽  
Patient Reported ◽  
Oral Corticosteroids ◽  
Sinonasal Outcome Test ◽  
Snot 22

Objective Acute exacerbation of chronic rhinosinusitis (AECRS) is associated with significant quality-of-life decreases. We sought to determine characteristics associated with an exacerbation-prone phenotype in chronic rhinosinusitis (CRS). Study Design Cross-sectional. Setting Tertiary care rhinology clinic. Subjects Patients with CRS (N = 209). Methods Patient-reported number of sinus infections, CRS-related antibiotics, and CRS-related oral corticosteroids taken in the last 12 months were used as metrics for AECRS frequency. Sinonasal symptom burden was assessed with the 22-item Sinonasal Outcome Test (SNOT-22). Ninety patients reporting 0 for all AECRS metrics were considered to have had no AECRS in the prior 12 months. A total of 119 patients reported >3 on at least 1 AECRS metric and were considered as having an exacerbation-prone phenotype. Characteristics associated with patients with an exacerbation-prone phenotype were identified with exploratory regression analysis. Results An exacerbation-prone phenotype was positively associated with comorbid asthma (adjusted odds ratio [ORadj] = 3.68, 95% CI: 1.42-9.50, P = .007) and SNOT-22 (ORadj = 1.06, 95% CI: 1.04-1.09, P < .001). Polyps were negatively associated (ORadj = 0.27, 95% CI: 0.11-0.68, P = .005) with an exacerbation-prone phenotype. SNOT-22 score ≥24 identified patients with an exacerbation-prone phenotype with a sensitivity of 93.3% and a specificity of 57.8%. Having either a SNOT-22 score ≥24 with a nasal subdomain score ≥12 or a SNOT-22 score ≥24 with an ear/facial discomfort subdomain score ≥3 provided >80% sensitivity and specificity for detecting patients prone to exacerbation. Conclusions In total, these results point to a CRS exacerbation-prone phenotype characterized by high sinonasal disease burden with comorbid asthma but interestingly without polyps.

Using Item Response Theory Models to Evaluate the Practice Environment Scale

2014 ◽  
Vol 22 (2) ◽  
pp. 323-341 ◽  
Author(s):  
Dheeraj Raju ◽  
Xiaogang Su ◽  
Patricia A. Patrician
Keyword(s):  
Item Response Theory ◽  
Item Response ◽  
Information Criterion ◽  
Partial Credit Model ◽  
Practice Environment ◽  
Partial Credit ◽  
Response Theory ◽  
Environment Scale ◽  
Graded Response ◽  
Item Response Theory Models

Background and Purpose: The purpose of this article is to introduce different types of item response theory models and to demonstrate their usefulness by evaluating the Practice Environment Scale. Methods: Item response theory models such as constrained and unconstrained graded response model, partial credit model, Rasch model, and one-parameter logistic model are demonstrated. The Akaike information criterion (AIC) and Bayesian information criterion (BIC) indices are used as model selection criterion. Results: The unconstrained graded response and partial credit models indicated the best fit for the data. Almost all items in the instrument performed well. Conclusions: Although most of the items strongly measure the construct, there are a few items that could be eliminated without substantially altering the instrument. The analysis revealed that the instrument may function differently when administered to different unit types.

scholarly journals Evaluation of Buss-Perry aggression Questionnaire with item response theory (IRT)

Psihologija ◽  
2012 ◽  
Vol 45 (2) ◽  
pp. 189-207 ◽  
Author(s):  
Bojana Dinic ◽  
Bojan Janicic
Keyword(s):  
Item Response Theory ◽  
Psychometric Properties ◽  
Item Response ◽  
Physical Aggression ◽  
Verbal Aggression ◽  
The Other ◽  
Irt Model ◽  
Graded Responses ◽  
Gender And Age ◽  
Aggression Questionnaire

The aim of this research was to examine the psychometric properties of the Buss-Perry Aggression Questionnaire on Serbian sample, using the IRT model for graded responses. AQ contains four subscales: Physical aggression, Verbal aggression, Hostility and Anger. The sample included 1272 participants, both gender and age ranged from 18 to 68 years, with average age of 31.39 (SD = 12.63) years. Results of IRT analysis suggested that the subscales had greater information in the range of above-average scores, namely in participants with higher level of aggressiveness. The exception was Hostilisty subscale, because it was informative in the wider range of trait. On the other hand, this subscale contains two items which violate assumption of homogenity. Implications for measurement of aggressiveness are discussed.

scholarly journals Development of Sinonasal Outcome Test ( SNOT ‐22) Domains in Chronic Rhinosinusitis With Nasal Polyps

2021 ◽  
Author(s):  
Asif H. Khan ◽  
Matthew Reaney ◽  
Isabelle Guillemin ◽  
Lauren Nelson ◽  
Shanshan Qin ◽  
...  
Keyword(s):  
Chronic Rhinosinusitis ◽  
Nasal Polyps ◽  
Sinonasal Outcome Test ◽  
Snot 22
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