Why is this an example of quasi-experimental design and not an experimental design? Explain your answer. Identify the internal threats to validity that may be an issue in this study. Explain your answer.

Describe the treatment and control groups used in this study.
Why is this an example of quasi-experimental design and not an experimental design? Explain your answer.
Identify the internal threats to validity that may be an issue in this study. Explain your answer.

6 min video

3min video

Hashim et al. (2017), Wang et al. (2018), and Lui et al. (2021) describe themselves as an experiments, a quasi-experiment and a field experiment. Compare and contrast the three papers and share you insights from the papers.

Experimental Designs

Hashim et al. (2017), Wang et al. (2018), and Lui et al. (2021) describe themselves as an experiments, a quasi-experiment and a field experiment. Compare and contrast the three papers and share you insights from the papers.