Write a 1,050- to 1,400-word paper describing the types and functions of research designs. Address each of the following in your paper:An explanation of internal and external variable-related validity

Writea 1,050- to 1,400-word paper describing the types and functions of research designs. Address each of the following in your paper:

An explanation of internal and external variable-related validity factors

The strengths and limitations of experimental research designs

Summary of two contemporary examples of experimental research conducted within the criminal justice field within the past 10 years

Please add references and site the information.