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How Valid are Web-Based Self-Reports of Weight?

How Valid are Web-Based Self-Reports of Weight?

Considering the increasing number of studies collecting Web-based data, there is a need to determine the validity of Web-based self-reports of body weight.

Stephanie Erika Bonn, Ylva Trolle Lagerros, Katarina Bälter

J Med Internet Res 2013;15(4):e52


Author’s Reply to: Comment on “Web-Based Measure of Life Events Using Computerized Life Events and Assessment Record (CLEAR): Preliminary Cross-Sectional Study of Reliability, Validity, and Association With Depression”: Validity and Methodological Issues

Author’s Reply to: Comment on “Web-Based Measure of Life Events Using Computerized Life Events and Assessment Record (CLEAR): Preliminary Cross-Sectional Study of Reliability, Validity, and Association With Depression”: Validity and Methodological Issues

While appreciating the critique, it expands on only one of the validity findings, comparing CLEAR with a life event interview and checklist questionnaire. There are significant points not outlined in the letter [1] and these are addressed here.

Antonia Bifulco

JMIR Ment Health 2020;7(5):e15434


Medical-Grade Physical Activity Monitoring for Measuring Step Count and Moderate-to-Vigorous Physical Activity: Validity and Reliability Study

Medical-Grade Physical Activity Monitoring for Measuring Step Count and Moderate-to-Vigorous Physical Activity: Validity and Reliability Study

Considering the accumulating evidence on the benefits of PA and the clinical outcomes of PA monitoring, the validity and reliability of such patient-focused PA monitors must be evaluated.

Myles William O'Brien, William Robert Wojcik, Jonathon Richard Fowles

JMIR Mhealth Uhealth 2018;6(9):e10706


The 12-item Self-Report World Health Organization Disability Assessment Schedule (WHODAS) 2.0 Administered Via the Internet to Individuals With Anxiety and Stress Disorders: A Psychometric Investigation Based on Data From Two Clinical Trials

The 12-item Self-Report World Health Organization Disability Assessment Schedule (WHODAS) 2.0 Administered Via the Internet to Individuals With Anxiety and Stress Disorders: A Psychometric Investigation Based on Data From Two Clinical Trials

There is thus a need for separate validation of the self-rated 12-item WHODAS 2.0 when administered via the Internet and, to the knowledge of the authors, no study has yet investigated the convergent or discriminant validity, responsiveness, test-retest reliability

Erland Axelsson, Elin Lindsäter, Brjánn Ljótsson, Erik Andersson, Erik Hedman-Lagerlöf

JMIR Ment Health 2017;4(4):e58


Use of a Google Map Tool Embedded in an Internet Survey Instrument: Is it a Valid and Reliable Alternative to Geocoded Address Data?

Use of a Google Map Tool Embedded in an Internet Survey Instrument: Is it a Valid and Reliable Alternative to Geocoded Address Data?

However, map tools embedded in Internet surveys used to identify key locations for study participants are not widely used currently, and to our knowledge, have never been evaluated for usability in the context of validity and reliability.

Sharoda Dasgupta, Adam S Vaughan, Michael R Kramer, Travis H Sanchez, Patrick S Sullivan

JMIR Res Protoc 2014;3(2):e24


Evaluation of a Web-Based Food Record for Children Using Direct Unobtrusive Lunch Observations: A Validation Study

Evaluation of a Web-Based Food Record for Children Using Direct Unobtrusive Lunch Observations: A Validation Study

The combination of thorough training sessions prior to the study start and IOR assessments before and continuously during the study was important, and it provides a premise for high internal validity.

Anine Christine Medin, Helene Astrup, Britt Marlene Kåsin, Lene Frost Andersen

J Med Internet Res 2015;17(12):e273


Translation of the Chinese Version of the Nomophobia Questionnaire and Its Validation Among College Students: Factor Analysis

Translation of the Chinese Version of the Nomophobia Questionnaire and Its Validation Among College Students: Factor Analysis

the English version of NMP-Q based on the cultural background and language habits of the Chinese and explored the applicability of the Chinese version of the scale among 966 college students in southern China, and the results showed that the reliability and validity

Ye Gao, Hongliang Dai, Guizhi Jia, Chunguang Liang, Tong Tong, Zhiyu Zhang, Ruobing Song, Qing Wang, Yue Zhu

JMIR Mhealth Uhealth 2020;8(3):e13561


Comment on “Web-Based Measure of Life Events Using Computerized Life Events and Assessment Record (CLEAR): Preliminary Cross-Sectional Study of Reliability, Validity, and Association With Depression”: Validity and Methodological Issues

Comment on “Web-Based Measure of Life Events Using Computerized Life Events and Assessment Record (CLEAR): Preliminary Cross-Sectional Study of Reliability, Validity, and Association With Depression”: Validity and Methodological Issues

We were interested in the article titled, “Web-Based Measure of Life Events Using Computerized Life Events and Assessment Record (CLEAR): Preliminary Cross-Sectional Study of Reliability, Validity, and Association With Depression” published in JMIR Mental Health

Jamal Rahmani, Roya Karimi, Farideh Mohtasham, Siamak Sabour

JMIR Ment Health 2020;7(5):e14505