Question

rgy Balance Concep... Saved Help Save & Exit Sub Required information Weight changes were assessed by self- reports of body weight every four years throughout the study. What did the researchers do to ensure the accuracy of self-reported body weight data? Multiple Choice Subjects measured body weight at home using scales that electronically transmitted measurements to the study database The researchers did not ensure the accuracy of self-reported body weight data The researchers velidated self-reports of body weight against measurements taken by study staff in a subset of the study sample and found them to be highly correlated. Next > K Prev 9 10 11 4 or 20

Answer 1

The researchers should follow the following concept to ensure the accuracy of self reported body weight data .

Option 3 is correct because accuracy means validity , how valid or exact is the results .

The researchers should validate self reports of body weight against measurements taken by study staff in a subset of the study sample and found them to be highly correlated.