Test-Retest Reliability of a Food Frequency Questionnaire to Assess Seafood Intake Dynamics for High-End Consumers in Coastal Gulf of Mexico Communities
Illustration of the agreement in response to the yearly frequency of the consumption of finfish (a) and shrimp (b) between the two administrations of the questionnaire. Both items displayed an almost perfect agreement based on kappa coefficients of 0.99 and 0.86 (a and b, respectively) in the reliability assessment.
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