Development and Validation of a Questionnaire on the Feasibility of a Mobile Dietary Self-Monitoring Application (Preprint)

2019 ◽  
Author(s):  
Jeong Sun Ahn ◽  
Jung Eun Lee
Keyword(s):  
Principal Component Analysis ◽  
Content Validity ◽  
Construct Validation ◽  
Principal Component ◽  
Component Analysis ◽  
Validity Index ◽  
Self Monitoring ◽  
Content Validity Index ◽  
Monitoring Applications ◽  
Monitoring Application

BACKGROUND Mobile health (mHealth)-based healthcare may be an effective way to prevent and manage noncommunicable diseases. Dietary assessment and monitoring is an essential part of healthcare. However, to our knowledge, an instrument to assess the feasibility of mobile dietary self-monitoring applications has not been developed and/or validated in Korea. OBJECTIVE This study aimed to develop a questionnaire on the feasibility of mobile dietary self-monitoring applications and to perform content and construct validation studies of the questionnaire. METHODS We developed a draft of the feasibility questionnaire containing the items to assess overall usage, convenience, usefulness, satisfaction, and purpose of use of mobile dietary applications. The initial draft of the questionnaire contained 17 questions that included yes/no, multiple-choice and open-ended questions and 52 items on 5-point Likert scales. For content validation, 10 expert panels evaluated the relevance of the items for each subscale using a 5-point scale. We calculated the item-level content validity index (I-CVI) and scale-level content validity index (S-CVI). To examine the construct validity of items regarding convenience, usefulness, satisfaction, and purpose of use, we conducted a principal component analysis for each subscale with a sample of 102 adults who had experience using a mobile dietary self-monitoring application. We measured the reliability of validated items using Cronbach’s alpha. RESULTS The S-CVI score of the questions and items on the questionnaire was 0.86. Items that received an I-CVI score less than 0.8 were removed. We combined, revised, or separated some remaining questions and items and added one question according to the experts’ comments. As a result, 16 questions (overall usage of mobile dietary application) and 42 items (convenience: 19, usefulness: 12, satisfaction: 6, and purpose of use: 5) remained. We performed a principal component analysis for 42 items of convenience, usefulness, satisfaction, and purpose of use and retained items loading at least 0.40, resulting in 36 items (convenience: 17, usefulness: 11, satisfaction: 5, and purpose of use: 3). The Cronbach’s alpha values of those 36 items were 0.96. As a consequence, the questionnaire contains 16 questions, plus 36 items. CONCLUSIONS We developed a questionnaire on the feasibility of mobile dietary self-monitoring applications and performed content and construct validation of the questionnaire. Our questionnaire has the potential to be utilized to measure the feasibility of mobile dietary self-monitoring applications.

scholarly journals Pediatric patient classification system: improvement of an instrument

2014 ◽  
Vol 48 (5) ◽  
pp. 787-793 ◽  
Author(s):  
Ariane Polidoro Dini ◽  
Edinêis de Brito Guirardello
Keyword(s):  
Construct Validity ◽  
Content Validity ◽  
Construct Validation ◽  
Validity Index ◽  
Content Validity Index ◽  
Correlational Design ◽  
Centered Care ◽  
Therapeutic Procedures ◽  
System Improvement ◽  
Family Centered

Objective Improve the content validity of the instrument for classification of pediatric patients and evaluate its construct validity. Method A descriptive exploratory study in the measurement of the content validity index, and correlational design for construct validation through exploratory factor analysis. Results The content validity index for indicators was 0.99 and it was 0.97 for graded situations. Three domains were extracted in the construct validation, namely: patient, family and therapeutic procedures, with 74.97% of explained variance. The instrument showed evidences of content and construct validity. Conclusion The validation of the instrument occurred under the approach of family-centered care, and allowed incorporating some essential needs of childhood such as playing, interaction and affection in the content of the instrument.


scholarly journals COMPARISON OF FUZZY SUBTRACTIVE CLUSTERING AND FUZZYC-MEANS

Kursor ◽  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Annisa Eka Haryati ◽  
Sugiyarto Sugiyarto ◽  
Rizki Desi Arindra Putri
Keyword(s):  
Principal Component Analysis ◽  
Fuzzy Clustering ◽  
Principal Component ◽  
Large Data ◽  
Component Analysis ◽  
Subtractive Clustering ◽  
Validity Index ◽  
Fuzzy Clustering Method ◽  
Dependent Variables ◽  
Better Than

Multivariate statistics have related problems with large data dimensions. One method that can be used is principal component analysis (PCA). Principal component analysis (PCA) is a technique used to reduce data dimensions consisting of several dependent variables while maintaining variance in the data. PCA can be used to stabilize measurements in statistical analysis, one of which is cluster analysis. Fuzzy clustering is a method of grouping based on membership values ​​that includes fuzzy sets as a weighting basis for grouping. In this study, the fuzzy clustering method used is Fuzzy Subtractive Clustering (FSC) and Fuzzy C-Means (FCM) with a combination of the Minkowski Chebysev distance. The purpose of this study was to compare the cluster results obtained from the FSC and FCM using the DBI validity index. The results obtained indicate that the results of clustering using FCM are better than the FSC.

RANCANGAN INSTRUMEN PENGUKUR ORGANIZATIONAL CITIZENSHIP BEHAVIOR DOSEN PERGURUAN TINGGI SWASTA DI JAKARTA

2021 ◽  
Vol 26 (3) ◽  
pp. 223-236
Author(s):  
Sri Hermawati ◽  
Lies Handrijaningsih ◽  
Titi Nugraheni
Keyword(s):  
Principal Component Analysis ◽  
Organizational Citizenship ◽  
Organizational Citizenship Behavior ◽  
Content Validity ◽  
Principal Component ◽  
Civic Virtue ◽  
Component Analysis ◽  
Citizenship Behavior ◽  
Cronbach Alpha ◽  
Total Item

Beberapa penelitian menunjukkan bahwa salah satu faktor yang ikut berperan dalam karier individu adalah Organizational Citizenship Behavior (OCB). OCB mengacu pada perilaku peran ekstra karyawan, yaitu perilaku yang bersifat sukarela dan melampaui ekspektasi peran normal. Berbagai penelitian menunjukkan bahwa pemberlakuan OCB memiliki dampak positif yang kuat pada berbagai hasil kerja individu. Mengingat peran dan dampak OCB dalam organisasi maka perlu disusun instrumen yang tepat untuk mengukur OCB. Penelitian ini dilakukan untuk menyusun instrumen pengukur OCB di kalangan dosen. OCB diukur dari lima dimensi yakni altruism, courtesy, conscientiousness, sportsmanship, dan civic-virtue. Uji reliabilitas dilakukan dengan melihat statistik Cronbach Alpha. Uji validitas ini menggunakan Content Validity Ratio. Validitas isi instrumen diperoleh dengan memberikan kuesioner yang dirancang kepada panelis yang terdiri dari pakar yang berkecimpung di dunia pendidikan dengan bidang psikologi dan manajemen. Pengujian validitas item sebagai pengukur variabel juga dilakukan dengan analisis Principal Component Analysis (PCA). Hasil uji PCA menunjukkan terbentuknya 10 variabel yang dapat digunakan untuk mengukur OCB di kalangan dosen. Total item pernyataan yang membentuk 10 variabel tersebut adalah 36 item pernyataan.

scholarly journals The development and initial validation of the Health and Reproductive Survey (HeRS)

2021 ◽  
Vol 17 ◽  
pp. 174550652110048
Author(s):  
Donna Duffy ◽  
Jennifer Yourkavitch ◽  
Georgie Bruinvels ◽  
Nicola J Rinaldi ◽  
Laurie Wideman
Keyword(s):  
Physical Activity ◽  
Principal Component Analysis ◽  
Content Validity ◽  
Principal Component ◽  
Component Analysis ◽  
Face Validity ◽  
Convenience Sample ◽  
Physically Active ◽  
Menstrual Function ◽  
The Face

Background: Due to the diversity in profiles associated with the female reproductive cycle and their potential physiological and psychological effects, monitoring the reproductive status of exercising females is important from a practical and research perspective. Moreover, as physical activity can influence menstrual function, the effects of physical activity energy expenditure on reproductive function should also be considered. Aim: The aim of this study was to develop and establish initial face and content validity of the Health and Reproductive Survey (HeRS) for physically active females, which is a retrospective assessment of menstrual function from menarche (first menstruation) to menopause (cessation of menstruation). Methods: Face validity was evaluated qualitatively, and the initial content validity was established through a principal component analysis. The face validity process was completed by 26 females aged 19–67 years and the content validity was established through a survey sent to a convenience sample of 392 females, of which 230 females (57.9% and aged 18–49 years) completed the survey. Results: The revisions made following the face validation improved the understanding, flow, and coherence of the survey. The principal component analysis indicated that, at a minimum, the survey measures these constructs: menstrual cessation and associated moderators, athletic participation and performance levels (as associated with menstruation change and the menstrual cycle), age and menstrual cessation, hormonal contraception (“birth control”), and menarche and associated moderators. Conclusion: The Health and Reproductive Survey (HeRS) is a partially validated tool that can be used by researchers to characterize the menstrual status of physically active females relative to their physical activity status.

scholarly journals Feasibility and validity of the PERF-FIT  test battery  to  assess movement skills, agility  and  power  among  children  in  low- resource  settings.

2020 ◽  
Author(s):  
Bouwien Smits-Engelsman ◽  
Emmanuel Bonney ◽  
Jorge Lopes Cavalcante Neto ◽  
Dorothee L Jelsma
Keyword(s):  
Principal Component Analysis ◽  
Physical Fitness ◽  
Content Validity ◽  
Principal Component ◽  
Component Analysis ◽  
Test Battery ◽  
Structural Validity ◽  
Low Resource Settings ◽  
Low Resource ◽  
Movement Skills

Abstract Background: Numerous movement skills and physical fitness tests have been developed for children in high-income countries. However, adaptation of these tests to low-resource settings has been slow and norms are still unavailable for children living in low-income communities. The aim of this paper was to describe the development and validation of the Performance and Fitness (PERF-FIT) test battery, a new test to assess motor skill-related physical fitness in children in low-resource settings. Method: The PERF-FIT test was developed in a stepwise manner. This involved defining the relevant domains of the construct of interest and selecting and evaluating test items. The Content Validity Index (CVI) was used to estimate content validity. Following development of the PERF-FIT test, a preliminary study was performed to validate items and to examine the feasibility of implementing the test in a low-resource community. Structural validity was also determined based on data from eighty (n=80) children (aged 7-12 years) using principal component analysis.Results: The CVI for the throw and catch item was 0.86 and 1.00 for the other nine items, leading to a total CVI score of 0.99. The hierarchical sequence of the item series was demonstrated by highly significant (p<0.001) linear trends, confirming the increase in difficulty of subsequent items. Principal component analysis revealed three factors; the first component is represented by locomotor skills that require static and dynamic balance, the second component by throwing and catching items and the third component by agility and power items. These findings suggest that it is feasible to implement the PERF-FIT in low-resource settings. Conclusion: The PERF-FIT test battery is easy to administer and may be suitable for measuring skill-related physical fitness in in low-resource settings. It has excellent content validity and good structural validity. After minor adaptions, further studies should be conducted to establish normative values, evaluate reliability, and document criterion and cross-cultural validity of this test.

A German version of the Intermittent Claudication Questionnaire (ICQ): cultural adaptation and validation

VASA ◽  
2012 ◽  
Vol 41 (5) ◽  
pp. 333-342 ◽  
Author(s):  
Kirchberger ◽  
Finger ◽  
Müller-Bühl
Keyword(s):  
Principal Component Analysis ◽  
Intermittent Claudication ◽  
Completion Time ◽  
Short Form ◽  
Principal Component ◽  
Component Analysis ◽  
German Version ◽  
Average Completion Time ◽  
Sf 36 ◽  
Related Quality

Background: The Intermittent Claudication Questionnaire (ICQ) is a short questionnaire for the assessment of health-related quality of life (HRQOL) in patients with intermittent claudication (IC). The objective of this study was to translate the ICQ into German and to investigate the psychometric properties of the German ICQ version in patients with IC. Patients and methods: The original English version was translated using a forward-backward method. The resulting German version was reviewed by the author of the original version and an experienced clinician. Finally, it was tested for clarity with 5 German patients with IC. A sample of 81 patients were administered the German ICQ. The sample consisted of 58.0 % male patients with a median age of 71 years and a median IC duration of 36 months. Test of feasibility included completeness of questionnaires, completion time, and ratings of clarity, length and relevance. Reliability was assessed through a retest in 13 patients at 14 days, and analysis of Cronbach’s alpha for internal consistency. Construct validity was investigated using principal component analysis. Concurrent validity was assessed by correlating the ICQ scores with the Short Form 36 Health Survey (SF-36) as well as clinical measures. Results: The ICQ was completely filled in by 73 subjects (90.1 %) with an average completion time of 6.3 minutes. Cronbach’s alpha coefficient reached 0.75. Intra-class correlation for test-retest reliability was r = 0.88. Principal component analysis resulted in a 3 factor solution. The first factor explained 51.5 of the total variation and all items had loadings of at least 0.65 on it. The ICQ was significantly associated with the SF-36 and treadmill-walking distances whereas no association was found for resting ABPI. Conclusions: The German version of the ICQ demonstrated good feasibility, satisfactory reliability and good validity. Responsiveness should be investigated in further validation studies.

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