For a study to be considered a true experiment according to Campbell and Stanley, there must be at least ____ level(s) of the independent variable

Jesse is making a detailed description of the skills, knowledge, and activities required by a particular job in his company. Jesse is

a. conducting a career assessment. b. implementing job enrichment. c. performing a vocational interest assessment. d. performing a job analysis.

Describe how epigenetics works in the expression of genes. Then, apply this to explaining why the epigenetic profiles of identical twins may become less similar as they age.

What will be an ideal response?