Dr. adams found that when people eat high fat diets, they are diagnosed with depression at a higher rate. this is an example of research

The correct answer is correlational research. Correlational research is described as a non-experimental research method by which the researches uses this method applies the use of measuring two variables that understands and also assess the statistical relationship with having no extraneous variable to be involved.

1. state-issued photo ids. provide them for free for those who can't afford them.

2. the system we have seems to be working nearly perfectly. seems like about 31 cases per billion votes cast

3. the national policy for hiring new employees which requires proof of eligibility to work. there are something like 20 types of identification which can be used for this.

answer; the correct answer is (composition);