Discuss the terms: Research Evaluation and Realistic Evaluation;Identify and describe Lab’s (2020) 3 types

Discuss the terms: Research Evaluation and Realistic Evaluation;
Identify and describe Lab’s (2020) 3 types of research evaluations; 
Discuss why the experimental design is important. How might it impact a studies validity, reliability, and generalizability?; and
What impact might the follow-up period in an evaluation make?  What if it is too short or too long?