24-hour Diet Recall
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24-hour Diet Recall
A 24-hour diet recall is a dietary assessment tool that consists of a structured interview in which participants are asked to recall all food and drink they have consumed in the previous 24 hours. It may be self-administered. Description The 24-hour diet recall relies on a trained interviewer, an accurate memory of intake, an ability to estimate portion size, and the interviewee's reliability to not misreport. This method can be administered by telephone, is suitable for large surveys, and has a low burden for respondents. In the interview, participants are asked to describe the foods and drinks they have consumed in the previous 24 hours; the participant then might be asked to provide more detail than what was initially provided. The open-ended nature of the interview is intended to help produce the most detailed description of foods and drinks consumed over the previous 24 hours. Details might include time of day, source of food, and portion size of food. A 24-hour diet recall is t ...
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Structured Interview
A structured interview (also known as a standardized interview or a researcher-administered survey) is a quantitative research method commonly employed in survey research. The aim of this approach is to ensure that each interview is presented with exactly the same questions in the same order. This ensures that answers can be reliably aggregated and that comparisons can be made with confidence between sample sub groups or between different survey periods. Structure Structured interviews are a means of collecting data for a statistical survey. In this case, the data is collected by an interviewer rather than through a self-administered questionnaire. Interviewers read the questions exactly as they appear on the survey questionnaire. The choice of answers to the questions is often fixed (close-ended) in advance, though open-ended questions can also be included within a structured interview. A structured interview also standardises the order in which questions are asked of survey re ...
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National Cancer Institute
The National Cancer Institute (NCI) coordinates the United States National Cancer Program and is part of the National Institutes of Health (NIH), which is one of eleven agencies that are part of the U.S. Department of Health and Human Services. The NCI conducts and supports research, training, health information dissemination, and other activities related to the causes, prevention, diagnosis, and treatment of cancer; the supportive care of cancer patients and their families; and cancer survivorship. NCI is the oldest and has the largest budget and research program of the 27 institutes and centers of the NIH ($6.9 billion in 2020). It fulfills the majority of its mission via an extramural program that provides grants for cancer research. Additionally, the National Cancer Institute has intramural research programs in Bethesda, Maryland, and at the Frederick National Laboratory for Cancer Research at Fort Detrick in Frederick, Maryland. The NCI receives more than in funding each ...
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Food Frequency Questionnaire
Food frequency questionnaire (FFQ) is a dietary assessment tool delivered as a questionnaire to estimate frequency and, in some cases, portion size information about food and beverage consumption over a specified period of time, typically the past month, three months, or year. FFQs are a common dietary assessment tool used in large epidemiologic studies of nutrition and health. Examples of usage include assessment of intake of vitamins and other nutrients, assessment of the intake of toxins, and estimating the prevalence of dietary patterns such as vegetarianism. Structure and data collected Questions A FFQ includes questions on a set of food and beverage items. For each food or beverage item, there may be questions asking about the following: * Frequency of consumption (with a "never" option as well as options ranging from very infrequent to several times a day). * Portion size information, which may be framed in terms of portion size for each round of consumption or total port ...
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American Journal Of Epidemiology
The American Journal of Epidemiology (''AJE'') is a peer-reviewed journal for empirical research findings, opinion pieces, and methodological developments in the field of epidemiological research. The current editor-in-chief is Dr. Enrique Schisterman. Articles published in ''AJE'' are indexed by PubMed, Embase, and a number of other databases. The ''AJE'' offers open-access options for authors. It is published monthly, with articles published online ahead of print at the accepted manuscript and corrected proof stages. Entire issues have been dedicated to abstracts from academic meetings (Society of Epidemiologic Research, North American Congress of Epidemiology), the history of the Epidemic Intelligence Service of the Centers for Disease Control and Prevention (CDC), the life of George W. Comstock, and the celebration of notable anniversaries of schools of public health ( University of California, Berkeley, School of Public Health; Tulane University School of Public Health and ...
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Reactivity (psychology)
Reactivity is a phenomenon that occurs when individuals alter their performance or behavior due to the awareness that they are being observed. The change may be positive or negative, and depends on the situation. It is a significant threat to a research study's external validity and is typically controlled for using blind experiment designs. There are several forms of reactivity. The Hawthorne effect occurs when research study participants know they are being studied and alter their performance because of the attention they receive from the experimenters. The John Henry effect, a specific form of Hawthorne effect, occurs when the participants in the control group alter their behavior out of awareness that they are in the control group. Reactivity is not limited to changes in behaviour in relation to being merely observed; it can also refer to situations where individuals alter their behavior to conform to the expectations of the observer. An experimenter effect occurs when t ...
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National Institutes Of Health
The National Institutes of Health, commonly referred to as NIH (with each letter pronounced individually), is the primary agency of the United States government responsible for biomedical and public health research. It was founded in the late 1880s and is now part of the United States Department of Health and Human Services. The majority of NIH facilities are located in Bethesda, Maryland, and other nearby suburbs of the Washington metropolitan area, with other primary facilities in the Research Triangle Park in North Carolina and smaller satellite facilities located around the United States. The NIH conducts its own scientific research through the NIH Intramural Research Program (IRP) and provides major biomedical research funding to non-NIH research facilities through its Extramural Research Program. , the IRP had 1,200 principal investigators and more than 4,000 postdoctoral fellows in basic, translational, and clinical research, being the largest biomedical research instit ...
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University Of Colorado Denver
The University of Colorado Denver (CU Denver) is a Public university, public research university in Denver, Colorado. It is part of the University of Colorado system. History University of Colorado System Anschutz Medical Campus The University of Colorado created the Department of Medicine and Surgery in September 1883 in the Old Main building on the CU Boulder, Boulder campus. The Department of Nursing opened in 1898. By 1892, the last two years of classes were taught in Denver because the larger population afforded more practical experience. This practice triggered something of a turf battle with the University of Denver's medical school and the subsequent legal battle went to the Supreme Court of Colorado, state Supreme Court. In 1897, the court found that CU's charter restricted them to Boulder, Colorado, Boulder. However, in 1910, University of Colorado system, CU got an amendment to the Law and Government of Colorado, state Constitution passed which allowed them to move b ...
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Nutrition Journal
The ''Nutrition Journal'' is a peer-reviewed medical journal A medical journal is a peer-reviewed scientific journal that communicates medical information to physicians, other health professionals. Journals that cover many medical specialties are sometimes called general medical journals. History The first ... covering nutrition science. It was established in 2002 and is published by BioMed Central, an imprint of Springer Science+Business Media. Its editor-in-chief is Nehme Gabriel ( Central Florida Health Alliance). According to the '' Journal Citation Reports'', the journal has a 2014 impact factor of 2.60. References External links *{{Official website, http://www.nutritionj.com/ Nutrition and dietetics journals BioMed Central academic journals Academic journals established in 2002 English-language journals ...
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Food Frequency Questionnaire
Food frequency questionnaire (FFQ) is a dietary assessment tool delivered as a questionnaire to estimate frequency and, in some cases, portion size information about food and beverage consumption over a specified period of time, typically the past month, three months, or year. FFQs are a common dietary assessment tool used in large epidemiologic studies of nutrition and health. Examples of usage include assessment of intake of vitamins and other nutrients, assessment of the intake of toxins, and estimating the prevalence of dietary patterns such as vegetarianism. Structure and data collected Questions A FFQ includes questions on a set of food and beverage items. For each food or beverage item, there may be questions asking about the following: * Frequency of consumption (with a "never" option as well as options ranging from very infrequent to several times a day). * Portion size information, which may be framed in terms of portion size for each round of consumption or total port ...
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Interviews
An interview is a structured conversation where one participant asks questions, and the other provides answers.Merriam Webster DictionaryInterview Dictionary definition, Retrieved February 16, 2016 In common parlance, the word "interview" refers to a one-on-one conversation between an ''interviewer'' and an ''interviewee''. The interviewer asks questions to which the interviewee responds, usually providing information. That information may be used or provided to other audiences immediately or later. This feature is common to many types of interviews – a job interview or interview with a witness to an event may have no other audience present at the time, but the answers will be later provided to others in the employment or investigative process. An interview may also transfer information in both directions. Interviews usually take place face-to-face and in person but the parties may instead be separated geographically, as in videoconferencing or telephone interviews. In ...
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