Reliability of the Discounting Inventory: An extension into substance-use population

Abstract Recent research introduced the Discounting Inventory that allows the measurement of individual differences in the delay, probabilistic, effort, and social discounting rates. The goal of this investigation was to determine several aspects of the reliability of the Discounting Inventory using the responses of 385 participants (200 non-smokers and 185 current-smokers). Two types of reliability are of interest. Internal consistency and test-retest stability. A secondary aim was to extend such reliability measures beyond the non-clinical participant. The current study aimed to measure the reliability of the DI in a nicotine-dependent individuals and non-nicotine-dependent individuals. It is concluded that the internal consistency of the DI is excellent, and that the test-retest reliability results suggest that items intended to measure three types of discounting were likely testing trait, rather than state, factors, regardless of whether “non-smokers” were included in, or excluded from, the analyses (probabilistic discounting scale scores being the exception). With these cautions in mind, however, the psychometric properties of the DI appear to be very good.

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Reliability and validity of the Persian version of 5-D itching scale among patients with chronic kidney disease

BMC Nephrology ◽

10.1186/s12882-020-02220-x ◽

2021 ◽

Vol 22 (1) ◽

Author(s):

Amin Kordi Yoosefinejad ◽

Fatemeh Karjalian ◽

Marzieh Momennasab ◽

Shahrokh Ezzatzadegan Jahromi

Keyword(s):

Chronic Kidney Disease ◽

Kidney Disease ◽

Psychometric Properties ◽

Internal Consistency ◽

Reliability And Validity ◽

Hemodialysis Patients ◽

Life Questionnaire ◽

Retest Reliability ◽

Persian Version ◽

Test Retest Reliability

Abstract Background Hemodialysis is considered a major therapeutic method for patients with chronic kidney disease. Pruritus is a common complaint of hemodialysis patients. The 5-D pruritus scale is amongst the most common tools to evaluate several dimensions of itch. Psychometric properties of the 5-D scale have not been evaluated in Persian speaking population with hemodialysis; hence, the objective of this study was to assess reliability and validity of the Persian version of the scale. Methods Ninety hemodialysis patients (men: 50, women: 40, mean age: 54.4 years) participated in this cross-sectional study. The final Persian version of 5-D scale was given to the participants. Tests Compared: One-third of the participants completed the scale twice within 3–7 days apart to evaluate test- retest reliability. Other psychometric properties including internal consistency, absolute reliability, convergent, discriminative and construct validity, floor/ceiling effects were also evaluated. Results The Persian 5-D scale has strong test-retest reliability (ICC= 0.98) and internal consistency (Cronbach’s alpha= 0.99). Standard error of measurement and minimal detectable change were 0.33 and 0.91, respectively. Regarding convergent validity, the scale had moderate correlation with numeric rating scale (r =0.67) and quality of life questionnaire related to itch (r = 0.59). Exploratory factor analysis revealed two factors within the scale. No floor or ceiling effect was found for the scale. Conclusion The Persian version of 5-D the itching scale is a brief instrument with acceptable reliability and validity. Therefore, the scale could be used by experts, nurses, and other health service providers to evaluate pruritus among Persian speaking hemodialysis patients.

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Psychometric properties of the critical thinking disposition assessment test amongst medical students in China: a cross-sectional study

BMC Medical Education ◽

10.1186/s12909-020-02437-2 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Liyuan Cui ◽

Yaxin Zhu ◽

Jinglou Qu ◽

Liming Tie ◽

Ziqi Wang ◽

...

Keyword(s):

Factor Analysis ◽

Critical Thinking ◽

Medical Students ◽

Psychometric Properties ◽

Internal Consistency ◽

Discriminant Validity ◽

Retest Reliability ◽

Critical Thinking Disposition ◽

Thinking Disposition ◽

Test Retest Reliability

Abstract Background Critical thinking disposition helps medical students and professionals overcome the effects of personal values and beliefs when exercising clinical judgment. The lack of effective instruments to measure critical thinking disposition in medical students has become an obstacle for training and evaluating students in undergraduate programs in China. The aim of this study was to evaluate the psychometric properties of the CTDA test. Methods A total of 278 students participated in this study and responded to the CTDA test. Cronbach’s α coefficient, internal consistency, test-retest reliability, floor effects and ceiling effects were measured to assess the reliability of the questionnaire. Construct validity of the pre-specified three-domain structure of the CTDA was evaluated by explanatory factor analysis (EFA) and confirmatory factor analysis (CFA). The convergent validity and discriminant validity were also analyzed. Results Cronbach’s alpha coefficient for the entire questionnaire was calculated to be 0.92, all of the domains showed acceptable internal consistency (0.81–0.86), and the test-retest reliability indicated acceptable intra-class correlation coefficients (ICCs) (0.93, p < 0.01). The EFA and the CFA demonstrated that the three-domain model fitted the data adequately. The test showed satisfactory convergent and discriminant validity. Conclusions The CTDA is a reliable and valid questionnaire to evaluate the disposition of medical students towards critical thinking in China and can reasonably be applied in critical thinking programs and medical education research.

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Validation of the Beliefs of Physical Activity among Clergy (B-PAC) Instrument

American Journal of Health Studies ◽

10.47779/ajhs.2017.91 ◽

2017 ◽

Vol 32 (2) ◽

Author(s):

Shannon Gwin ◽

Paul Branscum ◽

E. Laurette Taylor

Keyword(s):

Physical Activity ◽

Factor Analysis ◽

Construct Validity ◽

Psychometric Properties ◽

Internal Consistency ◽

Internal Consistency Reliability ◽

Retest Reliability ◽

Reliable Instrument ◽

The Stability ◽

Test Retest Reliability

The purpose of this study was to create a valid and reliable instrument to evaluate theory-basedbeliefs towards physical activity among clergy members. Data were collected from 174 clergy that par-ticipated in a 15-item online and paper-based survey. Psychometric properties of the instrument includedconfirmatory factor analysis (construct validity), and cronbach’s alpha (internal consistency reliability).In addition, the stability (test-retest reliability) of each subscale was evaluated with a sub-sample of 30participants. Results show the instrument was both valid and reliable, and will be useful in future studiestargeting this population. Future implications are discussed.

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Psychometric properties of patient reported outcome (PRO) instruments in patients with small cell lung cancer (SCLC) in RESILIENT part 1.

Journal of Clinical Oncology ◽

10.1200/jco.2021.39.15_suppl.e24027 ◽

2021 ◽

Vol 39 (15_suppl) ◽

pp. e24027-e24027

Author(s):

Jaba Kokhreidze ◽

Veleka Allen ◽

Cristina Ivanescu ◽

Xiaopan Valerie Yao ◽

Bin Zhang ◽

...

Keyword(s):

Lung Cancer ◽

Construct Validity ◽

Psychometric Properties ◽

Internal Consistency ◽

Life Questionnaire ◽

Retest Reliability ◽

Patient Reported ◽

Eortc Qlq ◽

Test Retest Reliability ◽

Pro Instruments

e24027 Background: The ongoing two-part phase 2/3 RESILIENT study (NCT03088813) is investigating the efficacy and safety of liposomal irinotecan monotherapy in patients with SCLC who have progressed on or after first line platinum-based chemotherapy. This exploratory analysis from RESILIENT part 1 was conducted to confirm the psychometric properties of established PRO instruments that had not previously been validated in patients with SCLC. Methods: Patients completed the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ) Core 30 (C30) and the EORTC QLQ Lung Cancer 13 (LC13) before treatment assignment (baseline), every 6 weeks thereafter, at treatment discontinuation and at the 30-day follow-up visit. Psychometric methods included descriptive statistics (items and scales), correlations (item-to-item and item-to-total), internal consistency (Cronbach’s α), test-retest reliability (intraclass correlation coefficient [ICC], two-way random effects model), construct validity and sensitivity to change. The analysis included patients who received at least one dose of study drug and completed at least one PRO assessment. Results: Thirty patients were enrolled in RESILIENT part 1 and included in the analysis. At baseline, 68% of patients reported ‘not severe’ or ‘mild’ symptoms. Floor effects (i.e. more than 25% of responses of ‘not at all’) were observed for several of the functioning/impact and symptom scales of the EORTC QLQ C30 and LC13. Moderate to strong correlations were found among most questionnaire items within their respective scales. Acceptable evidence for internal consistency and good test-retest reliability were observed. Selected results for the EORTC QLQ LC13, including dyspnea scales, are shown in the Table. The magnitude of correlations among PRO instruments supported evidence for convergent validity in this sample. Conclusions: In RESILIENT part 1, patients experienced low and tolerable symptoms at enrollment, limiting the potential for further improvement. Overall, these PRO instruments had acceptable psychometric properties (e.g. construct validity, reliability and ability to detect change) in this sample. However, these analyses should be repeated in a larger sample using data from RESILIENT part 2. Clinical trial information: NCT03088813. [Table: see text]

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The Persian Version of the Fear of Cancer Recurrence Inventory (FCRI): Translation and Evaluation of Its Psychometric Properties

Archives of Breast Cancer ◽

10.32768/abc.201964174-180 ◽

2019 ◽

pp. 174-180

Author(s):

Fatemeh Sadat Bateni ◽

Maryam Rahmatian ◽

Ahmad Kaviani ◽

Sebastian Simard ◽

Mehdi Soleimani ◽

...

Keyword(s):

Psychometric Properties ◽

Internal Consistency ◽

Concurrent Validity ◽

Goodness Of Fit ◽

Cancer Recurrence ◽

Fear Of Cancer Recurrence ◽

Retest Reliability ◽

Persian Version ◽

Fear Of Cancer ◽

Test Retest Reliability

Background: This study aimed to translate and validate the Fear of Cancer Recurrence Inventory (FCRI) questionnaire into Persian and to investigate its psychometric properties. Methods: The FCRI was translated to Persian using a linguistic methodology according to WHO guidelines. A total of 450 breast cancer survivors who had the following inclusion criteria were included: time elapse of more than six months after the treatment prior to the study; absence ofobjective markers of recurrence, fluency in the Persian language, and signing the informed consent. Internal consistency was estimated with Cronbach's α coefficient and test-retest reliability with Interclass correlation. Concurrent validity was estimated through Pearson’s correlation between the FCRI and Hospital Anxiety and Depression Scale (HADS). Principal component analysis (PCA) and confirmatory factor analysis (CFA) were employed to evaluate dimensionality. Results: The Persian version was acceptable for patients. The content validity index (CVI) was 0.80. The instrument had good test-retest reliability (ICC= 0.96) and internal consistency (Cronbach’s α=0.86). PCA and CFA indicated that the factor structure of the Persian version was similar to the original questionnaire and had acceptable goodness of fit. Correlations between the FCRI and HADS was remarkable (r= 0.252 – 0.639), indicating acceptable concurrent validity. Conclusions: The Persian version of FCRI could be considered a good cross-cultural equivalent for the original English version. The questionnaire was a reliable and valid instrument in terms of internal consistency, test-retest reliability, and dimensionality.

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Psychometric properties of a self-report version of the Sexual Interest and Desire Inventory for Women (SIDI-F-SR)

10.31219/osf.io/8ghda ◽

2020 ◽

Cited By ~ 1

Author(s):

Julia Velten ◽

Gerrit Hirschfeld ◽

Milena Meyers ◽

Jürgen Margraf

Keyword(s):

Psychometric Properties ◽

Internal Consistency ◽

Sexual Interest ◽

Intraclass Correlation ◽

Self Report ◽

Clinical Psychologist ◽

Retest Reliability ◽

Absolute Agreement ◽

Test Retest Reliability ◽

Restriction Of Range

Background: The Sexual Interest and Desire Inventory Female (SIDI-F) is a clinician-administered scale that allows for a comprehensive assessment of symptoms related to Hypoactive Sexual Desire Dysfunction (HSDD). As self-report questionnaires may facilitate less socially desirable responding and as time and resources are scarce in many clinical and research settings, a self-report version was developed (SIDI-F-SR). Aim: To investigate the agreement between the SIDI-F and a self-report version (SIDI-F-SR) and assess psychometric properties of the SIDI-F-SR. Methods: A total of 170 women (Mage=36.61, SD=10.61, range=20-69) with HSDD provided data on the SIDI-F, administered by a clinical psychologist via telephone, and the SIDI-F-SR, delivered as an Internet-based questionnaire. A subset of 19 women answered the SIDI-F-SR twice over a period of 14 weeks. Outcomes: Intraclass correlation as well as predictors of absolute agreement between SIDI-F and SIDI-F-SR, as well as internal consistency, test-retest reliability, and criterion-related validity of the SIDI-F-SR were examined. Results: There was high agreement between SIDI-F and SIDI-F-SR (ICC=.86). On average, women scored about one point higher in the self-report vs. the clinician-administered scale. Agreement was higher in young women and those with severe symptoms. Internal consistency of the SIDI-F-SR was acceptable (α=.76) and comparable to the SIDI-F (α=.74). When corrections for the restriction of range were applied, internal consistency of the SIDI-F-SR increased to .91. Test-retest-reliability was good (r=.74). Criterion-related validity was low but comparable between SIDI-F and SIDI-F-SR.

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Patient Continuity of Care Questionnaire in a cardiac sample: A Confirmatory Factor Analysis

BMJ Open ◽

10.1136/bmjopen-2020-037129 ◽

2020 ◽

Vol 10 (7) ◽

pp. e037129

Author(s):

Emma Säfström ◽

Lena Nasstrom ◽

Maria Liljeroos ◽

Lena Nordgren ◽

Kristofer Årestedt ◽

...

Keyword(s):

Psychometric Properties ◽

Factor Structure ◽

Continuity Of Care ◽

Internal Consistency ◽

Intraclass Correlation ◽

Evaluation Study ◽

Sampling Procedure ◽

Retest Reliability ◽

Confirmatory Factor ◽

Test Retest Reliability

ObjectiveEven though continuity is essential after discharge, there is a lack of reliable questionnaires to measure and assess patients’ perceptions of continuity of care. The Patient Continuity of Care Questionnaire (PCCQ) addresses the period before and after discharge from hospital. However, previous studies show that the factor structure needs to be confirmed and validated in larger samples, and the aim of this study was to evaluate the psychometric properties of the PCCQ with focus on factor structure, internal consistency and stability.DesignA psychometric evaluation study. The questionnaire was translated into Swedish using a forward–backward technique and culturally adapted through cognitive interviews (n=12) and reviewed by researchers (n=8).SettingData were collected in four healthcare settings in two Swedish counties.ParticipantsA consecutive sampling procedure included 725 patients discharged after hospitalisation due to angina, acute myocardial infarction, heart failure or atrial fibrillation.MeasurementTo evaluate the factor structure, confirmatory factor analyses based on polychoric correlations were performed (n=721). Internal consistency was evaluated by ordinal alpha. Test–retest reliability (n=289) was assessed with intraclass correlation coefficient (ICC).ResultsThe original six-factor structure was overall confirmed, but minor refinements were required to reach satisfactory model fit. The standardised factor loadings ranged between 0.68 and 0.94, and ordinal alpha ranged between 0.82 and 0.95. All subscales demonstrated satisfactory test–retest reliability (ICC=0.76–0.94).ConclusionThe revised version of the PCCQ showed sound psychometric properties and is ready to be used to measure perceptions of continuity of care. High ordinal alpha in some subscales indicates that a shorter version of the questionnaire can be developed.

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Cross-cultural adaptation, validity, and reliability of the Neck OutcOme Score (NOOS-Ar) among the Saudi Arabian populace

Journal of Back and Musculoskeletal Rehabilitation ◽

10.3233/bmr-191658 ◽

2020 ◽

pp. 1-10

Author(s):

Mazen Alqahtani

Keyword(s):

Construct Validity ◽

Psychometric Properties ◽

Internal Consistency ◽

Minimal Detectable Change ◽

Detectable Change ◽

Everyday Activity ◽

Retest Reliability ◽

Outcome Score ◽

Convergent Construct Validity ◽

Test Retest Reliability

BACKGROUND: To date the Neck OutcOme Score (NOOS) was not cross-culturally adapted, validated or available in the Arabic language, although it was available in other languages. OBJECTIVE: To translate and cross-culturally adapt the Arabic version of the Neck OutcOme Score (NOOS-Ar) and study its psychometric properties. METHODS: A sample of 146 subjects with chronic neck pain filled in the NOOS-Ar questionnaire to determine the Cronbach’s alpha (α) for internal consistency, test-retest reliability by intraclass correlation coefficients(2,1) [ICC(2,1)], inter-item correlation, measurement error by coefficient of variance and minimal detectable change, ceiling and floor effects, convergent construct validity with visual analog scale (VAS) by Spearman’s rank correlation coefficient (ρ) and factor analysis to calculate and determine its psychometric properties. RESULTS: Excellent internal consistency (Cronbach’s α> 0.9) and test-retest reliability [ICC(2,1)> 0.9] were observed in NOOS-Ar. None of the five subscales of the NOOS-Ar showed a floor or ceiling effect. The coefficient of variance was generally high, but the minimal detectable change was within the acceptable range (< 30%). The ‘everyday activity and pain’ and ‘symptoms’ subscales of the NOOS-Ar, showed a moderate correlation with VAS. CONCLUSION: The NOOS-Ar is highly reliable and has a moderate to good degree of convergent construct validity with VAS with no floor or ceiling effects.

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Psychometric Validity, Reliability, and Responsiveness of the Tinnitus Functional Index

Journal of the American Academy of Audiology ◽

10.3766/jaaa.16171 ◽

2018 ◽

Vol 29 (07) ◽

pp. 609-625 ◽

Cited By ~ 4

Author(s):

Navshika Chandra ◽

Kevin Chang ◽

Arier Lee ◽

Giriraj S. Shekhawat ◽

Grant D. Searchfield

Keyword(s):

Clinical Trial ◽

Psychometric Properties ◽

Internal Consistency ◽

Divergent Validity ◽

Valid Measure ◽

Functional Index ◽

Retest Reliability ◽

Smallest Detectable Change ◽

Different Populations ◽

Test Retest Reliability

AbstractThe effects of treatments on tinnitus have been difficult to quantify. The Tinnitus Functional Index (TFI) has been proposed as a standard questionnaire for measurement of tinnitus treatment outcomes. For a questionnaire to achieve wide acceptance, its psychometric properties need to be confirmed in different populations.To determine if the TFI is a reliable and valid measure of tinnitus, and if its psychometric properties are suitable for use as an outcome measure.A psychometric evaluation of the TFI from secondary data obtained from a cross-sectional clinic survey and a clinical trial undertaken in New Zealand.Confirmatory factor analysis and evaluation of internal consistency reliability were undertaken on a sample of 318 patients with the primary complaint of tinnitus. In a separate sample of 40 research volunteers, test–retest reliability, convergent and divergent validity were evaluated. Both samples consisted of predominantly older Caucasian male patients with tinnitus.The internal structure of the original US TFI was confirmed. The Cronbach’s Alpha and Intraclass correlation coefficients were >0.7 for the TFI overall and each of its subscales, indicating high internal consistency and test–retest reliability. Strong Pearson correlations with the Tinnitus Handicap Questionnaire and tinnitus numerical rating scales indicated excellent convergent validity, and a moderate correlation with the Hearing Handicap Inventory, indicated moderate divergent validity. Evaluation of the clinical trial showed good test–retest reliability and agreement between no-treatment baselines with a smallest detectable change of 4.8 points.The TFI is a reliable and valid measure of tinnitus severity in the population tested and is responsive to treatment-related change. Further research as to the TFI’s responsiveness to treatment is needed across different populations.

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Psychometric Properties of the Critical Thinking Disposition Assessment Test Amongst Medical Students in China: A Cross-Sectional Study

10.21203/rs.3.rs-16612/v2 ◽

2020 ◽

Author(s):

Liyuan Cui ◽

Yaxin Zhu ◽

Jinglou Qu ◽

Liming Tie ◽

Ziqi Wang ◽

...

Keyword(s):

Factor Analysis ◽

Critical Thinking ◽

Medical Students ◽

Psychometric Properties ◽

Internal Consistency ◽

Discriminant Validity ◽

Retest Reliability ◽

Critical Thinking Disposition ◽

Thinking Disposition ◽

Test Retest Reliability

Abstract Background: Critical thinking disposition helps medical students and professionals overcome the effects of personal values and beliefs when exercising clinical judgment. The lack of effective instruments to measure critical thinking disposition in medical students has become an obstacle for training and evaluating students in undergraduate programs in China. The aim of this study was to evaluate the psychometric properties of the CTDA test.Methods: A total of 278 students participated in this study and responded to the CTDA test. Cronbach’s a coefficient, internal consistency, test-retest reliability, floor effects and ceiling effects were measured to assess the reliability of the questionnaire. Construct validity of the pre-specified three-domain structure of the CTDA was evaluated by explanatory factor analysis (EFA) and confirmatory factor analysis (CFA). The convergent validity and discriminant validity were also analyzed.Results: Cronbach’s alpha coefficient for the entire questionnaire was calculated to be 0.92, all of the domains showed acceptable internal consistency (0.81-0.86), and the test-retest reliability indicated acceptable intra-class correlation coefficients (ICCs) (0.93, p<0.01). The EFA and the CFA demonstrated that the three-domain model fitted the data adequately. The test showed satisfactory convergent and discriminant validity.Conclusions: The CTDA is a reliable and valid questionnaire to evaluate the disposition of medical students towards critical thinking in China and can reasonably be applied in critical thinking programs and medical education research.

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