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Abstract The purpose of this article is to define qualitative research, explain its design, explore its congruence with quantitative research, and provide examples of its applications in dietetics. Also, methods to ensure validity, reliability,[...]Article
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Minji Kang ; Song-Yi Park ; Carol J. Boushey ; Lynne R. Wilkens ; Loïc Le Marchand ; Laurence N. Kolonel ; Suzanne P. Murphy ; Hee-Young Paik |Background: For some quantitative food frequency questionnaire (QFFQ) items, data may be insufficient to set gram weights for multiple portion size (PS) categories. Ratios of food amounts across PS categories may be used to quantify these PS fo[...]Article
Cara L. Frankenfeld ; Meredith A.J. Hullar ; Gertraud Maskarinec ; Kristine R. Monroe ; John A. Shepherd ; Adrian A. Franke ; Timothy W. Randolph ; Lynne R. Wilkens ; Carol J. Boushey ; Loïc Le Marchand ; Unhee Lim ; Johanna W. Lampe |Background Results from observational studies suggest high diet quality favorably influences the human gut microbiome. Fruit and vegetable consumption is often a key contributor to high diet quality. Objective To evaluate measures of gut bacteri[...]Article
Lynne R. Wilkens ; Minji Kang ; Song-Yi Park ; Adam Sawyer ; Carol J. Boushey ; Donna Lyn M. Au ; Hee-Young Paik ; Loïc Le Marchand ; Christopher A. Haiman ; Laurence N. Kolonel ; Suzanne P. Murphy |Background: Quantitative food frequency questionnaires (QFFQs) are often used to measure dietary intakes in large cohort studies but the impact of updating these questionnaires over time is not often examined. Objective: This study compared nut[...]
