Psychometric Testing of the Modified Dental Anxiety Scale among Iranian Adolescents during COVID-19 Pandemic

(1) Background: The present study aimed to examine the psychometric properties of the Persian adaptation of the Modified Dental Anxiety Scale (MDAS) in Iranian adolescents. (2) Methods: Adolescents with a mean age of 15.10 (n = 3197; 47.1% males) were recruited from Qazvin city of Iran using a stratified cluster random sampling technique. All children completed the five-item Persian MDAS and information related to background characteristics. Psychometric testing was conducted using classical test theory (CTT) and Rasch models. For CTT, an item-total correlation of >0.4 was considered satisfactory while for Rasch analysis, infit and outfit mean squares (Mnsq) ranging from 0.5–1.5 were considered satisfactory. Confirmatory Factor Analysis (CFA) was conducted to confirm the unidimensional structure of MDAS using various fit indices. Differential item functioning (DIF) was evaluated based on gender and time since last dental visit. Moreover, latent class analysis (LCA) was used to classify the participants into different levels of dental fear based on their pattern of responses. Both item level reliability using Cronbachs alpha (α) and test-reliability using intraclass correlation coefficients were evaluated. (3) Results: Item-total correlations ranged from 0.69–0.78, infit MnSq ranged from 0.80 to 1.11 and the range of outfit MnSq was 0.84–1.10. The data confirmed a one-factor structure of MDAS with satisfactory fit indices. DIF analysis indicated that the scale was interpreted similarly across the genders and time since dental visit groups. LCA analysis identified three levels, low, moderate and high levels of dental anxiety. The groups with moderate and high levels of dental anxiety had more females (44.6% and 36.7%) than the group with low level of dental anxiety (18.8%; p < 0.001). α of the total scale was 0.89 and item test-retest reliability ranged from 0.72–0.86. (4) Conclusions: The Persian MDAS was unidimensional with satisfactory psychometric properties evaluated using both CTT and Rasch analysis among Iranian adolescents. The scale was stable across the genders and individuals with different dental visiting patterns. The Persian MDAS also demonstrated excellent reliability.

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Translation and validation of modified dental anxiety scale based on adult Taiwan population

BMC Oral Health ◽

10.1186/s12903-021-02017-w ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Chia-Shu Lin ◽

Chen-Yi Lee ◽

Shih-Yun Wu ◽

Li-Ling Chen ◽

Kun-Tsung Lee ◽

...

Keyword(s):

Construct Validity ◽

Psychometric Properties ◽

Internal Consistency ◽

Dental Treatment ◽

Dental Anxiety ◽

Temporal Stability ◽

Anxiety Scale ◽

Dental Visit ◽

Dental Patients ◽

The Difference

Abstract Background Dental anxiety is associated with negative experiences of dental treatment and dental-visiting behavior. The Modified Dental Anxiety Scale (MDAS) is widely used for assessing dental anxiety. The study aims to establish the psychometric properties of a Chinese version of the MDAS based on the Taiwan sample (i.e., T-MDAS). Methods The T-MDAS and dental-visiting behavior and experience were assessed for 402 adult subjects recruited from community and clinical sites. The following psychometric properties were assessed: (a) internal consistency, (b) temporal stability, (c) criterion-related validity (i.e., the association with the score of Index of Dental Anxiety and Fear, IDAF-4C), (d) discrimination validity (i.e., the difference in scores between the subjects with and without a habit of a regular dental visit, and (e) the construct validity from a confirmatory factor analysis (CFA). Results. The T-MDAS showed good internal consistency (Cronbach’s α = 0.88) and temporal stability (ρ = 0.69, p < 0.001). The score was significantly correlated with the score of the IDAF-4C (ρ = 0.76, p < 0.001) and differed between subjects who regularly visited a dentist or not, supporting good criterion-related validity and discrimination validity. Results from CFA supports good construct validity. Furthermore, higher dental anxiety was related to the lack of a regular dental visit, feeling pain during treatment, and feeling insufficient skills and empathy of dentists. A higher proportion of high-dental anxiety subjects in female subjects (8.5%), compared to male subjects (5.0%), was noted. Conclusions The T-MDAS is a valid tool for assessing adult dental anxiety. The score is highly associated with dental-visiting behavior and experience of dental patients.

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Development and psychometric evaluation of the Thirst Distress Scale for patients with heart failure

European Journal of Cardiovascular Nursing ◽

10.1177/1474515117728624 ◽

2017 ◽

Vol 17 (3) ◽

pp. 226-234 ◽

Cited By ~ 5

Author(s):

Nana Waldréus ◽

Tiny Jaarsma ◽

Martje HL van der Wal ◽

Naoko P Kato

Keyword(s):

Heart Failure ◽

Psychometric Properties ◽

Intraclass Correlation ◽

Psychometric Testing ◽

Psychometric Evaluation ◽

Weighted Kappa ◽

Patients With Heart Failure ◽

Using Data ◽

Test Retest Reliability ◽

Distress Scale

Background: Patients with heart failure can experience thirst distress. However, there is no instrument to measure this in patients with heart failure. The aim of the present study was to develop the Thirst Distress Scale for patients with Heart Failure (TDS-HF) and to evaluate psychometric properties of the scale. Methods and results: The TDS-HF was developed to measure thirst distress in patients with heart failure. Face and content validity was confirmed using expert panels including patients and healthcare professionals. Data on the TDS-HF was collected from patients with heart failure at outpatient heart failure clinics and hospitals in Sweden, the Netherlands and Japan. Psychometric properties were evaluated using data from 256 heart failure patients (age 72±11 years). Concurrent validity of the scale was assessed using a thirst intensity visual analogue scale. Patients did not have any difficulties answering the questions, and time taken to answer the questions was about five minutes. Factor analysis of the scale showed one factor. After psychometric testing, one item was deleted. For the eight item TDS-HF, a single factor explained 61% of the variance and Cronbach’s alpha was 0.90. The eight item TDS-HF was significantly associated with the thirst intensity score ( r=0.55, p<0.001). Regarding test-retest reliability, the intraclass correlation coefficient was 0.88, and the weighted kappa values ranged from 0.29–0.60. Conclusion: The eight-item TDS-HF is valid and reliable for measuring thirst distress in patients with heart failure.

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Psychometric properties of the Mastery Scale-Chinese version: Applying classical test theory and Rasch analysis

Scandinavian Journal of Occupational Therapy ◽

10.3109/11038128.2013.838999 ◽

2013 ◽

Vol 20 (6) ◽

pp. 404-411 ◽

Cited By ~ 5

Author(s):

Yun-Ling Chen ◽

Ping-Chuan Hsiung ◽

Lyinn Chung ◽

Shing-Chia Chen ◽

Ay-Woan Pan

Keyword(s):

Psychometric Properties ◽

Rasch Analysis ◽

Classical Test Theory ◽

Chinese Version ◽

Test Theory ◽

Classical Test

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Evaluation of Psychometric Properties and Factorial Structure of ADHD Module of K-SADS-PL in Children From Rural Kenya

Journal of Attention Disorders ◽

10.1177/1087054717753064 ◽

2018 ◽

Vol 24 (14) ◽

pp. 2064-2071 ◽

Cited By ~ 3

Author(s):

Symon M. Kariuki ◽

Charles R. J.C. Newton ◽

Amina Abubakar ◽

Mary A. Bitta ◽

Rachael Odhiambo ◽

...

Keyword(s):

Psychometric Properties ◽

Intraclass Correlation ◽

High Sensitivity ◽

School Age Children ◽

School Age ◽

Fit Indices ◽

Factorial Structure ◽

Clinical Validity ◽

Rural Kenya ◽

Screening Interview

Objective: We determined the reliability of The Kiddie-Schedule for Affective Disorders and Schizophrenia for School-Age Children–Present and Lifetime (K-SADS-PL) for screening and diagnosing ADHD in children. Method: K-SADS-PL was administered to 2,074 children in the community. Psychometric properties, factorial structure, and clinical validity of K-SADS-PL in screening or diagnosis of ADHD were examined. Results: Internal consistency was excellent for items in the screening interview (Macdonald’s Omega [ω] = 0.89; 95% confidence interval [CI] [0.87, 0.94]) and diagnostic supplement (ω = 0.95; 95% CI [0.92, 0.99]). The standardized coefficients for items in the screening interview were acceptable (0.59-0.85), while fit indices for single factorial structure reached acceptable levels. Screening items were associated with high sensitivity (97.8%; 95% CI [97.2, 98.5%]) and specificity (94.0%; 95% CI [93.0, 95.0%]) for diagnosis of ADHD in the supplement. The test-retest and interinformant reliability as measured by intraclass correlation coefficient was good for most of the items. Conclusion: This large study shows that K-SADS-PL can be reliably used to screen and diagnose ADHD in children in Kenya.

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Psychometric properties of QuickDASH – A classical test theory and Rasch analysis study

Manual Therapy ◽

10.1016/j.math.2010.10.004 ◽

2011 ◽

Vol 16 (2) ◽

pp. 177-182 ◽

Cited By ~ 32

Author(s):

Franco Franchignoni ◽

Giorgio Ferriero ◽

Andrea Giordano ◽

Francesco Sartorio ◽

Stefano Vercelli ◽

...

Keyword(s):

Psychometric Properties ◽

Rasch Analysis ◽

Classical Test Theory ◽

Test Theory ◽

Analysis Study ◽

Classical Test

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Thai version of the Minnesota Living with Heart Failure Questionnaire: psychometric testing using a longitudinal design

Asian Biomedicine ◽

10.2478/abm-2010-0115 ◽

2010 ◽

Vol 4 (6) ◽

pp. 877-884 ◽

Cited By ~ 2

Author(s):

Wiwat Tangsatitkiat ◽

Phantipa Sakthong

Keyword(s):

Heart Failure ◽

New York ◽

Psychometric Properties ◽

Longitudinal Design ◽

Short Form ◽

Intraclass Correlation ◽

Psychometric Testing ◽

Heart Association ◽

Sf 36 ◽

Heart Failure Questionnaire

Abstract Background: The Minnesota Living with Heart Failure Questionnaire (MLHFQ) is the most widely used diseasespecific instrument for heart failure (HF). However, a Thai version of the MLHFQ has not been available yet. Objective: Test the psychometric properties of the Thai version of the MLHFQ in terms of practicality, reliability, validity, and responsiveness, using a longitudinal design. Methods: One hundred eighty HF outpatients (mean age: 65±12 years; 58% male) were interviewed at Phramongkutklao Hospital, Bangkok between December 2008 and August 2009. Practicality was assessed with interview-times. Reliability was evaluated using Cronbach’s α and intraclass correlation coefficients (ICCs). Validity was tested with correlations between the MLHFQ scores and the SF-36 scores, confirmatory factor analysis, and known-groups validity. Responsiveness was observed with effect sizes (ES) and minimal clinically important differences (MCID). Results: The averaged interview-time was approximately five minutes. The Cronbach’s α and ICCs of the MLHFQ were 0.86-0.93 and 0.84-0.88, respectively. The MLHFQ scores were moderately correlated with the Short Form-36 Health Survey (SF-36) scores, and discriminated the patients with different classes by New York Heart Association. The average ES were medium, ranging from 0.2 to 0.5. The MCID ranged from 1.4 to 14.5 for improved patients and from -1.4 to -12.7 for worsened patients. Conclusion: The Thai version of the MLHFQ showed acceptable psychometric properties. It can be used as a disease-specific instrument to measure health-related quality of life of Thai patients with HF.

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Development and psychometric properties of the Multiple Sclerosis Knowledge Assessment Scale: Rasch analysis of a novel tool for evaluating MS knowledge

Multiple Sclerosis Journal ◽

10.1177/1352458520929626 ◽

2020 ◽

pp. 135245852092962

Author(s):

Barnabas Bessing ◽

Cynthia A Honan ◽

Ingrid van der Mei ◽

Bruce V Taylor ◽

Suzi B Claflin

Keyword(s):

Multiple Sclerosis ◽

Psychometric Properties ◽

Delphi Study ◽

Rasch Analysis ◽

Assessment Tools ◽

Assessment Scale ◽

Test Reliability ◽

Knowledge Assessment ◽

Separation Index ◽

Evaluation Metric

Background: Multiple sclerosis (MS)-related knowledge is an important evaluation metric for health education interventions. However, few MS knowledge assessment tools are currently available for use. Objectives: This study aims to develop a reliable and valid Multiple Sclerosis Knowledge Assessment Scale (MSKAS) for use in the MS community and the general public. Methods: The MSKAS was developed using a Delphi study methodology and was administered to participants in the first open enrolment of the Understanding Multiple Sclerosis (UMS) online course. Rasch analysis was used to examine its psychometric properties and develop the final scale. Results: Experts from across the MS community participated in the development of the MSKAS, resulting in an initial scale of 42 items. Five hundred and forty-three UMS participants completed the MSKAS; 89% were female and 30% were people with MS. The final unidimensional 22-item scale has a person separation index of 2.16, a person reliability index of 0.82, an item separation index of 11.19, and a Cronbach’s alpha (kr-20) test reliability of 0.87. Conclusion: The MSKAS is a unidimensional scale with good construct validity and internal consistency. The MSKAS has the potential to be useful for the assessment of MS knowledge in research and clinical practice.

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Analysis of the psychometric properties of the Multiple Sclerosis Impact Scale-29 (MSIS-29) in relapsing–remitting multiple sclerosis using classical and modern test theory

Multiple Sclerosis Journal - Experimental Translational and Clinical ◽

10.1177/2055217316673235 ◽

2016 ◽

Vol 2 ◽

pp. 205521731667323 ◽

Cited By ~ 1

Author(s):

ED Bacci ◽

KW Wyrwich ◽

GA Phillips ◽

T Vollmer ◽

S Guo

Keyword(s):

Multiple Sclerosis ◽

Clinical Trial ◽

Psychometric Properties ◽

Rasch Analysis ◽

Test Theory ◽

Measurement Properties ◽

Community Based ◽

Item Fit ◽

Impact Scale ◽

Relapsing Remitting

Background Investigations using classical test theory support the psychometric properties of the original version of the Multiple Sclerosis Impact Scale (MSIS-29v1), a disease-specific measure of multiple sclerosis (MS) impact (physical and psychological subscales). Later, assessments of the MSIS-29v1 in an MS community-based sample using Rasch analysis led to revisions of the instrument’s response options (MSIS-29v2). Objective The objective of this paper is to evaluate the psychometric properties of the MSIS-29v1 in a clinical trial cohort of relapsing–remitting MS patients (RRMS). Methods Data from 600 patients with RRMS enrolled in the SELECT clinical trial were used. Assessments were performed at baseline and at Weeks 12, 24, and 52. In addition to traditional psychometric analyses, Item Response Theory (IRT) and Rasch analysis were used to evaluate the measurement properties of the MSIS-29v1. Results Both MSIS-29v1 subscales demonstrated strong reliability, construct validity, and responsiveness. The IRT and Rasch analysis showed overall support for response category threshold ordering, person-item fit, and item fit for both subscales. Conclusions Both MSIS-29v1 subscales demonstrated robust measurement properties using classical, IRT, and Rasch techniques. Unlike previous research using a community-based sample, the MSIS-29v1 was found to be psychometrically sound to assess physical and psychological impairments in a clinical trial sample of patients with RRMS.

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