article critique

• Critique/Evaluate the Research Design issues:
  • What specific research design(s) did the authors use? (May not be stated directly you should be able to figure it out based on what you have learned)
  • Are there threats to internal and external validity? If yes, discuss. 
• Critique/Evaluate the Sampling issues:
  • What is the population that the authors wanted to study (i.e., target population)?
  • Does the population (i.e., sampling frame) from which the sample was taken represent all of the appropriate people?
  • What type of sampling technique was used?
  • What are the implications of this sampling technique for the findings?
  • Are there issues with external validity?

ANSWER ALL QUESTIONS. NO WORD FOR WORD or IN-TEXT CITATIONS