SNEB Journal Club 7: Construct validity

(recorded Monday, November 9, 2015)

Presented by Erikka Loftfield, MPH, Yale School of Public Health 

Based on research from the JNEB article "Construct Validity of a Single-Item, Self-Rated Question of Diet Quality" - http://www.jneb.org/article/S1499-4046(14)00675-7/abstract 

Objectives: 

1. Identify the strengths, limitations, and applications of current measures of overall diet quality. 

2. Define construct validity in the context of survey questions. 

3. Evaluate the construct validity of a single-item, self-rated question of diet quality using self-reported and biomarker data. 

4. Provide additional example(s) of construct validity in epidemiological studies. 

Dr. Loftfield earned a BA in biology from Cornell University, an MPH in chronic disease epidemiology and global health from the Yale School of Public Health, and a PhD in Epidemiology from Yale University. While at Yale, Dr. Loftfield participated in the Epi Scholars Program at the New York City Department of Health and Mental Hygiene where she worked on the Heart Follow-Up Study and became interested in survey design and measures of dietary intake. She is currently a postdoctoral research fellow at the National Cancer Institute where she studies the associations of dietary intake and biomarkers of dietary intake with cancer-related outcomes. 

http://www.sneb.org/documents/JNEB Journal Club - November 2015 - Construct Validity of a Single-Item, Self-Rated Question-FINAL.pdf