Field Experiment: Minimum wage legislation will lead to higher unemployment
Various validity issues are bound to occur in this experiment. The first one relates to the selection interaction, as there is a risk of the researcher recruiting from one group of participants. This is a risk to internal validity. For example, the researcher may focus on participants from the same state, which affects the generalizability of the study. The interaction effects of testing also affect the external validity in this case ( Campbell & Stanley, 2015) . It is based on the notion that the participants may be aware of the study being conducted, which can influence a specific response to the study. The most important is the selection interaction as it has a stronger effect on the outcome in the research. The participants have an established opinion before the study can affect the result.
Cross-Sectional Study: Capital punishment deters crime
This scenario’s validity is affected by the selection dilemma. This threat emanates if the participants are not selected randomly. In this study, validity would be affected by maturation, which occurs because of the participants changing regarding getting wiser, getting absorbed in the society, and them getting older ( King, McInerney, Ganotice Jr, & Villarosa, 2015) . The second threat is the effects of selection as the sample used may not reflect the general population. The most important threat is selection as there may be some pre-existing differences between the participants. For instance, a variance in age can lead to a difference in results, which would not be true if the research was conducted on individuals of the same age. Consequently, the type of punishment that is presented to the individual also affects the results of the study and hence the validity. To deal with this, the researcher should conduct random selection.
Delegate your assignment to our experts and they will do the rest.
References
Campbell, D. T., & Stanley, J. C. (2015). Experimental and quasi-experimental designs for research . Ravenio Books.
King, R. B., McInerney, D. M., Ganotice Jr, F. A., & Villarosa, J. B. (2015). Positive affect catalyzes academic engagement: Cross-sectional, longitudinal, and experimental evidence. Learning and Individual Differences , 39 , 64-72.
