Question

Researchers are interested in the effect of exposure to food dyes on hyperactivity in kids. A sample of 200 kids are recruited from the general community and parents of these kids are asked to report their child's social security number, the age of their child, the number of servings of foods containing dyes their child ingests in a week to rate their child's level of hyperactivity/agitation on a scale of 1 to 10 (1: little to no hyperactivity/agitation and 10: extreme hyperactivity/agitation), and to report whether or not their child received accommodations at school relating to attention or hyperactivity. 1. a, Who are the cases? (2 pts) Name the variables and specify for each variable whether it should be treated as a quantitative or categorical variable. (4 points) b.

Answer 1

a) Cases are effect of exposure to food dyes on the hyperactivity in kids.

b) social security number -quantitative

age of the children -quantitative

the number of serving of foods quantitative

child's level of hyperactivity - categorical