More dogs are being diagnosed with thyroid problems than have been diagnosed in the past. A researcher identified 50 puppies without thyroid problems and kept records of their diets for several years to see if any developed thyroid problems. This is a(n)
A) randomized experiment
B) prospective study
C) retrospective study
D) survey
E) blocked experiment

Question

Quizplus · Accepted Answer

This is a prospective study because the researcher is following a group of puppies forward in time to see if they develop thyroid problems.

More Dogs Are Being Diagnosed with Thyroid Problems Than Have