what aspect of the research design might limit generalizability

 For this Discussion, select one of the articles from the reading list and consider several classifications of group research designs.

Post your response to the following: Describe which groups are compared in the research. Then, classify the research design as follows:

1. By explaining whether the study is pre-experimental (cross-sectional, one-shot case study, and longitudinal), experimental (control group with pretest and posttest, posttest only, or four-group design), or quasi-experimental (comparing one group to itself at different times or comparing two different groups)
2. By indicating what the researchers report about limitations of the study
3. By explaining concerns you have regarding internal validity and the ability of the study to draw conclusions about causality
4. By explaining any concerns you have about the generalizability of the study (external validity) and what aspect of the research design might limit generalizability

Please use the resources to support your answer.

250-300 words

use resources provided 

resources;

Bauman, S. (2006). Using comparison groups in school counseling research: A primer. Professional School Counseling, 9(5), 357–366.

Kohl, P. L., Kagotho, J., & Dixon, D. (2011). Parenting practices among depressed mothers in the child welfare system. Social Work Research, 35(4), 215–225.