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, andlongitudinal), experimental (control group with pretest and posttest, posttest only, or four-groupdesign), or quasi-experimental (comparing one group to itself at diff erent times or comparing twodiff erent 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 drawconclusions about causality 4. By explaining any concerns you have about the generalizability of the study (external validity) andwhat aspect of the research design might limit generalizability