Development and Validation of a Short Sport Nutrition Knowledge Questionnaire for Athletes

Weak evidence exists on the relationship between nutritional knowledge and diet quality. Many researchers claim that this could be in part because of inadequate validation of the questionnaires used. The aim of this study was to develop a compact reliable questionnaire on nutrition knowledge for young and adult athletes (NUKYA). Researchers and the sport clubs medical staff developed the questionnaire by taking into consideration the latest athlete dietary guidelines. The questionnaire content was validated by a panel of 12 nutrition experts, and finally tested by 445 participants including athletes (n = 264), nutrition students (n = 49) and non-athletes with no formal nutrition knowledge (n = 132). After consulting the experts, 59 of the 64 initial items remained in the questionnaire. To collect the evaluation of experts, we used the content validity index, obtaining high indices for relevance and ambiguity (0.99) as well as for clarity and simplicity (0.98). The final questionnaire included 24 questions with 59 items. We ensured construct validity and reliability through psychometric validation based on the Classical Test Theory and the Item–Response Theory (Rasch model). We found significant statistical differences comparing the groups of nutrition knowledgeable participants with the rest of the groups (ANOVA p < 0.001). We verified the questionnaire for test–retest reliability (R = 0.895, p < 0.001) and internal consistency (Cronbach’s α=0.849). We successfully fit the questionnaire data to a rating scale model (global separation reliability of 0.861) and examined discrimination and difficulty indices for items. Finally, we validated the NUKYA questionnaire as an effective tool to appraise nutrition knowledge in athletes. This questionnaire can be used for guiding in educational interventions, studying the influence of nutrition knowledge on nutrient intake and assessing/monitoring sport nutritional knowledge in large groups.

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Using the Rating Scale Model to Examine the Psychometric Properties of the Self-Efficacy Scale for Driver Competence

European Journal of Psychological Assessment ◽

10.1027/1015-5759/a000063 ◽

2011 ◽

Vol 27 (3) ◽

pp. 164-170 ◽

Cited By ~ 1

Author(s):

Anna Sundström

Keyword(s):

Psychometric Properties ◽

Self Efficacy ◽

Rating Scale ◽

Measurement Precision ◽

The Self ◽

Test Theory ◽

Self Report ◽

Scale Model ◽

Validity And Reliability ◽

Two Samples

This study evaluated the psychometric properties of a self-report scale for assessing perceived driver competence, labeled the Self-Efficacy Scale for Driver Competence (SSDC), using item response theory analyses. Two samples of Swedish driving-license examinees (n = 795; n = 714) completed two versions of the SSDC that were parallel in content. Prior work, using classical test theory analyses, has provided support for the validity and reliability of scores from the SSDC. This study investigated the measurement precision, item hierarchy, and differential functioning for males and females of the items in the SSDC as well as how the rating scale functions. The results confirmed the previous findings; that the SSDC demonstrates sound psychometric properties. In addition, the findings showed that measurement precision could be increased by adding items that tap higher self-efficacy levels. Moreover, the rating scale can be improved by reducing the number of categories or by providing each category with a label.

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The functionality and quality of nutrition-related mobile applications in China (Preprint)

10.2196/preprints.13261 ◽

2018 ◽

Author(s):

Yuan Li ◽

Jingmin Ding ◽

Yishan Wang ◽

Chengyao Tang ◽

Puhong Zhang

Keyword(s):

Disease Management ◽

Nutrition Education ◽

Mobile Applications ◽

Rating Scale ◽

Dietary Guidelines ◽

Diet Analysis ◽

Innovative Technology ◽

Nutritional Knowledge ◽

Food Record

BACKGROUND There are an increasing number of mobile applications that provide dietary guidance in supporting healthy lifestyle and disease management. However, the characteristics of these nutrition-related apps are not well analyzed. OBJECTIVE This study aimed to evaluate the functionality and quality of nutrition-related apps in China. METHODS Mobile apps providing dietary guidance were screened in Chinese iOS and android app stores using stepwise searching criteria in November 2017. Primary review was conducted by extracting information from the description of apps. Free apps that contain all the information of diet and nutrition, with the last update after 1st Jan 2016 were downloaded for further analysis on the nutritional functionality features based on the framework of Chinese Dietary Guidelines and on the market related features as well. The user version of the Mobile Application Rating Scale (uMARS) was used to assess the quality of apps. RESULTS Among the 44 downloaded nutrition-related apps screened from 628 apps with dietary guidance content, only 11(25%) were aimed exclusively for dietary guidance, the others were aimed for fitness guidance (17, 39%), disease management (11, 25%) and maternal health (5, 11%) respectively. The nutritional functionalities of the 44 apps included nutritional information enquiry (40, 91%), nutrition education (35, 80%), food record (34, 77%), diet analysis (34, 77%), and personalized recipes (21, 48%). Twelve out of 44 apps contained all of the above five nutrition related functionalities. The diet analysis and suggestions were mainly focused on energy (33/44, 75%), less on other factors like dietary structure (10/44, 23%). About 96% (42/44) of the apps provided social communication functionality and 59% (26/44) of the apps supported user incentives. Eight out of 44 apps (18%) also applied intelligent recognition technology. Using 5-point uMARS as scales of quality, the median scores of the 44 apps was 3.6 (IQR = 0.7). CONCLUSIONS Most nutrition-related apps are developed in the service of health management other than for dietary guidance exclusively. Although basic energy balance theory was generally applied, the nutritional functionality of the nutrition-related apps is relatively limited and not individualized. More efforts should be taken to integrate with the scientific nutritional knowledge and innovative technology in developing an app followed with complete and personalized dietary guidance.

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Psychometric evaluation of the Relative Mastery Scale: An Occupational Adaptation instrument

OTJR Occupation Participation and Health ◽

10.1177/15394492211060877 ◽

2021 ◽

pp. 153944922110608

Author(s):

Lorrie George-Paschal ◽

Nancy E. Krusen ◽

Chia-Wei Fan

Keyword(s):

Rating Scale ◽

Classical Test Theory ◽

Correlation Coefficients ◽

Measurement Model ◽

Community Dwelling ◽

Test Theory ◽

Partial Credit Model ◽

Validity And Reliability ◽

Occupational Adaptation ◽

Scale Properties

This study evaluated the psychometric properties of the Relative Mastery Scale (RMS). Valid and reliable client-centered instruments support practice in value-based health care and community-based settings. Participants were 368 community-dwelling adults aged 18 to 95 years. Researchers conducted validity and reliability examinations of the RMS using classical test theory and Rasch measurement model. A partial credit model allowed exploration of individual scale properties. Spearman’s correlation coefficients between items were statistically significant at the .01 level. Cronbach’s alpha coefficient was .94 showing strong internal consistency. In exploratory factor analysis, Factor 1 accounted for 71% of variance with an eigenvalue of 4.26. In Rasch analysis, the 5-point rating scale demonstrated adequate functioning, confirmed unidimensionality, and person/item separation. The RMS instrument demonstrates sound psychometric characteristics. A valid and reliable measure of internal occupational adaptation supports application to monitor progress of internal occupational adaptation across a variety of individuals.

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The Client-Clinician Assessment Protocol (C-CAP): Evaluation of its Psychometric Properties for Use with People Aging with Disabilities in Need of Home Modifications

OTJR Occupation Participation and Health ◽

10.1177/153944920702700404 ◽

2007 ◽

Vol 27 (4) ◽

pp. 140-148 ◽

Cited By ~ 4

Author(s):

Ingela Petersson ◽

Anne G. Fisher ◽

Helena Hemmingsson ◽

Margareta Lilja

Keyword(s):

Rating Scale ◽

Daily Life ◽

Self Report ◽

Scale Model ◽

Validity And Reliability ◽

Assessment Protocol ◽

Rasch Rating Scale Model ◽

Home Modifications ◽

Life Tasks ◽

Clinician Assessment

The objective of this study was to evaluate aspects of the validity and reliability of the Client-Clinician Assessment Protocol (C-CAP) Part I. C-CAP data for 103 people aging with disabilities in need of home modification services were analyzed using the Rasch rating scale model. The C-CAP Part I consists of a client self-report of ability in daily life tasks comprising three scales (independence, difficulty, and safety). The analysis demonstrated support for internal scale validity, person response validity, and person separation reliability of the C-CAP Part I, although the results differed among the three scales. The results of this study indicated that the C-CAP Part I has psychometric strengths and limitations. The instrument has the potential to be used in the home environment with people who are aging with disabilities. The C-CAP could complement already existing tools that are used to assess functioning in activities of daily living, especially regarding the focus on the clients' self-report of difficulty and safety in daily life at home and in the community.

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Nutrition knowledge and Attitude in Medical Students of Tabriz University of Medical Sciences in 2017-2018

10.21203/rs.2.13353/v2 ◽

2019 ◽

Author(s):

Neda Dolatkhah ◽

Seyed Kazem Shakouri ◽

Azizeh Farshbaf Khalili ◽

Majid Hajifaraji ◽

Maryam Hashemian ◽

...

Keyword(s):

Medical Students ◽

Clinical Training ◽

Cross Sectional Study ◽

Nutrition Knowledge ◽

Nutritional Knowledge ◽

Validity And Reliability ◽

Medical Sciences ◽

Cross Sectional ◽

The Mean ◽

Knowledge And Attitude

Abstract Objectives : In this cross-sectional study among 220 medical students we aimed to determine the nutritional knowledge and attitude of medical students through clinical training courses (externship and internship) of Tabriz University of Medical Sciences, Iran. A nutritional knowledge questionnaire included 51 questions was used to determine the correct, perceived and accuracy of knowledge of the participant in different aspects of nutrition sciences. Nutritional knowledge was calculated as percentage of correct responses. The nutrition attitude questionnaire included 30 questions. Both questionnaires were confirmed in terms of the validity and reliability for assessing nutritional knowledge and attitude in this sample of Iranian medical students. Results: The mean score of correct knowledge was not significantly different among externs and interns (68.20±7.50% and 67.87±6.04% respectively, p=0.729). Results showed that most of the participants (49.61% of externs and 57.14% of inters) had a poor nutritional knowledge, significantly varied by age (p=0.035). The mean attitude index of the subjects was not significantly different among externs and interns (106.37±13.66 and 108.16±13.35 out of 145 respectively, p=0.337). Most students (92.7%) had a very appropriate attitude toward nutrition, significantly varied by sex (p=0.010). These findings indicate that there are multiple deficiencies in nutrition knowledge of medical students.

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Defining statistical measurement levels of Intuitive Eating with the Rasch Rating Scale Model

Proceedings of The Nutrition Society ◽

10.1017/s002966512000470x ◽

2020 ◽

Vol 79 (OCE2) ◽

Author(s):

Hanis Gani ◽

Peter Ho ◽

Caroline Orfila

Keyword(s):

Factor Analysis ◽

Rating Scale ◽

Test Theory ◽

Composite Score ◽

Scale Model ◽

Intuitive Eating ◽

Rasch Rating Scale Model ◽

Significant Difference ◽

The Relationship ◽

Rating Scale Model

AbstractIntuitive eating is an intrinsic ability to moderate the amount and type of food, promoting a healthy diet and self-regulation of one's own weight. Different instruments (IES-H, IES-T, IES-2) have been developed to assess intuitive eating between different population groups from different countries. The construct validity and invariance of the 23-item Intuitive Eating Scale-2 (IES-2) has been widely validated by Confirmatory Factor Analysis and Exploratory Factor Analysis. However, these Classical Test Theory (CTT) methods have not always confirmed the same 4-factor structure.Rasch analysis, a Modern Test Theory method (MTT), has been used as an alternative approach to examine the psychometric properties of various health and medical instrument (HADS, KIDSCREEN-52, LANSS, MHRM). One significant difference between CTT and MT is the method of calculating a composite score. A CTT total sore is based on the summation of raw categorical scores, whereas these raw categorical scores are converted to interval-scaled measures into a Rasch composite score.Data was collected from 625 respondents was fitted to the Rasch Rating Scale Model. The data fitted the model adequately, as less than 5% and 1% of absolute standardised residuals were found to be ≥ 2 and ≥ 3, respectively. A Principle Component Analysis of Rasch residuals (PCAR) was used to determine the unidimensionality of the IES-2 and its subscales, after checking and adjusting for lack of item fit and proper rating scale functioning. PCAR indicated that all 23 items could not function as a single total unidimensional Rasch measure. However, the same item structure for the 4 subscales, originally proposed by Tylka and Kroon Van Diest, was confirmed by PCAR. The relationship between the respondents and the IES-2 items in each subscale could be explained using a Wright map, allowing both to be represented on the same logit scale.Statistical different levels of intuitive eating were determined for each subscale from a table representing the relationship between the lowest and highest possible raw scores and their Rasch measures. Wright maps showed the position of respondents between cut-off lines indicating different statistical levels along each unidimensional subscale of intuitive eating. The majority of respondents were classified into 2 out of 4 levels in the subscale Unconditional Permission to Eat, 3 out of 5 levels in Eating for Physical Rather Than Emotional Reasons, 3 out of 5 levels in Reliance on Internal Hunger and Satiety Cues and 2 out of 4 levels in Body-Food Choice Congruence.

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Nutrition knowledge and attitude in medical students of Tabriz University of Medical Sciences in 2017–2018

BMC Research Notes ◽

10.1186/s13104-019-4788-9 ◽

2019 ◽

Vol 12 (1) ◽

Author(s):

Neda Dolatkhah ◽

Dawood Aghamohammadi ◽

Azizeh Farshbaf-Khalili ◽

Majid Hajifaraji ◽

Maryam Hashemian ◽

...

Keyword(s):

Medical Students ◽

Clinical Training ◽

Cross Sectional Study ◽

Nutrition Knowledge ◽

Nutritional Knowledge ◽

Validity And Reliability ◽

Medical Sciences ◽

Cross Sectional ◽

Knowledge Questionnaire ◽

Knowledge And Attitude

Abstract Objectives In this cross-sectional study among 220 medical students we aimed to determine the nutritional knowledge and attitude of medical students through clinical training courses (externship and internship) of Tabriz University of Medical Sciences, Iran. A nutritional knowledge questionnaire included 51 questions was used to determine the correct, perceived and accuracy of knowledge of the participant in different aspects of nutrition sciences. The nutrition attitude questionnaire included 30 questions. Both questionnaires were confirmed in terms of the validity and reliability for assessing nutritional knowledge and attitude in this sample of Iranian medical students. Nutritional knowledge and attitude were calculated as percentage of correct or appropriate responses. Results The correct knowledge was not significantly different among externs and interns (68.20 ± 7.50% and 67.87 ± 6.04% respectively, p = 0.729). Results showed that most of the participants (49.61% of externs and 57.14% of inters) had a poor nutritional knowledge, significantly varied by age (p = 0.035). The attitude index of the subjects was not significantly different among externs and interns (73.36 ± 9.42% and 74.59 ± 9.20%, p = 0.335). Most students (92.7%) had a very appropriate attitude toward nutrition, significantly varied by sex (p = 0.010). These findings indicate that there are multiple deficiencies in nutrition knowledge of medical students.

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Development of the Paranormal and Supernatural Beliefs Scale using classical and modern test theory

BMC Psychology ◽

10.1186/s40359-021-00600-y ◽

2021 ◽

Vol 9 (1) ◽

Author(s):

Charlotte E. Dean ◽

Shazia Akhtar ◽

Tim M. Gale ◽

Karen Irvine ◽

Richard Wiseman ◽

...

Keyword(s):

Rating Scale ◽

Classical Test Theory ◽

Test Theory ◽

Scale Model ◽

Internal Reliability ◽

Classical Test ◽

Classic Test Theory ◽

Differential Item Functioning Analysis ◽

Supernatural Beliefs ◽

Test Retest Reliability

Abstract Background This study describes the construction and validation of a new scale for measuring belief in paranormal phenomena. The work aims to address psychometric and conceptual shortcomings associated with existing measures of paranormal belief. The study also compares the use of classic test theory and modern test theory as methods for scale development. Method We combined novel items and amended items taken from existing scales, to produce an initial corpus of 29 items. Two hundred and thirty-one adult participants rated their level of agreement with each item using a seven-point Likert scale. Results Classical test theory methods (including exploratory factor analysis and principal components analysis) reduced the scale to 14 items and one overarching factor: Supernatural Beliefs. The factor demonstrated high internal reliability, with an excellent test–retest reliability for the total scale. Modern test theory methods (Rasch analysis using a rating scale model) reduced the scale to 13 items with a four-point response format. The Rasch scale was found to be most effective at differentiating between individuals with moderate-high levels of paranormal beliefs, and differential item functioning analysis indicated that the Rasch scale represents a valid measure of belief in paranormal phenomena. Conclusions The scale developed using modern test theory is identified as the final scale as this model allowed for in-depth analyses and refinement of the scale that was not possible using classical test theory. Results support the psychometric reliability of this new scale for assessing belief in paranormal phenomena, particularly when differentiating between individuals with higher levels of belief.

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Nutrition knowledge and Attitude in Medical Students of Tabriz University of Medical Sciences in 2017-2018

10.21203/rs.2.13353/v3 ◽

2019 ◽

Author(s):

Neda Dolatkhah ◽

Dawood Aghamohammadi ◽

Azizeh Farshbaf Khalili ◽

Majid Hajifaraji ◽

Maryam Hashemian ◽

...

Keyword(s):

Medical Students ◽

Clinical Training ◽

Cross Sectional Study ◽

Nutrition Knowledge ◽

Nutritional Knowledge ◽

Validity And Reliability ◽

Medical Sciences ◽

Cross Sectional ◽

The Mean ◽

Knowledge And Attitude

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Reliability and validity of a General Nutrition Knowledge Questionnaire for adults in a Romanian population

European Journal of Clinical Nutrition ◽

10.1038/s41430-020-0616-5 ◽

2020 ◽

Vol 74 (11) ◽

pp. 1576-1584

Author(s):

Salomeia Putnoky ◽

Ancuța Mioara Banu ◽

Lavinia Cristina Moleriu ◽

Sandra Putnoky ◽

Denis Mihai Șerban ◽

...

Keyword(s):

General Population ◽

Convergent Validity ◽

Population Sample ◽

Reliability And Validity ◽

Nutrition Knowledge ◽

Nutritional Knowledge ◽

Validity And Reliability ◽

Internal Reliability ◽

Knowledge Questionnaire ◽

Nutrition Research

Abstract Background Nutritional knowledge assessment is an important component in nutrition research, and a prerequisite for the implementation of many policies and programs aimed at improving eating behavior. In order to generate objective results, validated tools for a given population must be employed. The aim of this study was to determine the validity and reliability of a nutrition knowledge questionnaire for Romanian adults. Methods Kleimann’s version of a General Nutrition Knowledge Questionnaire, was translated and adapted to Romanian language, culture, and cuisine. The final format was developed in several steps and used four components: internal and external reliability were assessed in a general population sample (n1 = 412), respectively in a subgroup (n2 = 46) from Component 1; Component 3 assessed construct validity (n3 = 96) using the “known-groups” method; Component 4 (convergent validity, n4 = 508) tested the association between socio-demographic characteristics and nutrition knowledge. Results The overall internal reliability was 0.878 and the external reliability was >0.880 in all sections, and overall. Specialists had higher scores than nonspecialists, with a very large effect size. In the general population, females scored higher than males, and middle-aged and older adults scored higher than young adults. Higher scores were associated with higher levels of education. The characteristics of individuals prone to giving wrong answers were: males (beta = 0.170), high school or less (beta = 0.167), and no training in nutrition (beta = 0.154). Conclusions The Romanian version of the General Nutrition Knowledge Questionnaire is a reliable and valid tool for measuring nutrition knowledge in adults.

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