PSY 2007 Week 5 Assignment 2: Literature Review Work

PSY 2007 Week 5 Assignment 2: Literature Review Work

PSY 2007 Week 5 Assignment 2: Literature Review Work

Selected two empirical articles on a research topic of interest. Provided a summary of both articles, including the following:

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Explained whether the authors used a population or a sample. Explained how this could have affected the results. Analyzed and justified whether a sample was used and whether it was representative of the entire population.

Described the hypotheses of the studies. Stated the null and research hypotheses.
Described the major independent and dependent variables. Described one additional independent and one dependent variable to provide novel information.

Provided an example of a measure of central tendency and explained why the authors chose this measure as opposed to the other measures. Explained how the results might have differed if the authors had chosen another measure.

Provided an example of a measure of variability and explained why the authors chose this measure as opposed to the other measures. Explained how the results might have differed if the authors had chosen another measure.

Selected a result that includes the mean and the standard deviation, converted the values to a z-score, and interpreted how this score compares to the average.
On the basis of the statistics used and the authors’ interpretation of the results, described which study did a better job and justified your stand with a specific example.

PSY 2007 Week 7 Assignment 2 Application of T-tests

Performed the following:

Part I

Determined whether an individual’s political affiliation affects his or her overall satisfaction with the economy. Analyzed any potential differences by conducting the appropriate type of t-test.

Used the proper df and provided all the steps of calculations, including the test statistic.

Included an explanation of how the critical value was determined. Explained why you chose that specific t-test.

Part II

Selected subjects with affiliation to one of the political parties or who have declared themselves as Independents and determined whether there is a difference between their satisfaction with their jobs and their satisfaction with their incomes.

Used the proper df and provided all the steps of calculations, including the test statistic.

Included an explanation of how the critical value was determined. Explained why you chose that specific t-test.

Interpreted the results of the analyses, focusing on the similarities and differences between using a paired t-test and an independent t-test.

PSY 2007 Week 8 Assignment 2 ANOVA With Post Hoc Test ​

Addressed the following:

Determined whether an individual’s satisfaction with the economy differs across the various political affiliations, using the levels of Republican, Democrat, and others (e.g., Independents and undeclared).
Used the proper df and provided all the steps of the calculations.

Included an explanation of how to determine the critical value. Interpreted the results based on the comparison of the test statistic to the critical value. Interpreted the significance of the results and explained whether an individual’s satisfaction with the economy depends on his or her political affiliation.

Conducted a post hoc analysis to determine which comparisons contributed to the results. Explained which post hoc test you chose and why and provided all the steps of the calculations.
Interpreted the use of an ANOVA with a post hoc test compared to the use of multiple t-tests. Explained which would have been more appropriate in this situation and why.

PSY 2007 Week 9 Assignment 2 Statistical Analysis

Determined whether the variable hours worked per week by an individual is correlated to the variable the individual’s satisfaction with his or her job. Used the proper df and provided all the steps of the calculations. Included an explanation of how the critical value was determined. Interpreted the results in light of the hypothesis that the variable number of hours worked is related to the variable the satisfaction one feels about his or her job.

Added two extreme outliers to each of the variables. Recalculated the correlation coefficient and determined whether the variable hours worked per week is still correlated with the variable satisfaction with the job. Used the proper df and provided all the steps of the calculations, including determination of the critical value. Interpreted the new results in light of the hypothesis. Interpreted the effect of outliers on correlation coefficients. Did not interpret the effect of outliers on correlation coefficients.

Explained what happens to the magnitude of the correlation with a sample size of 1000, and why that would be important if there are outliers in the data.

Wrote in a clear, concise, and organized manner; demonstrated ethical scholarship in the accurate representation and attribution of sources (i.e., ); and displayed accurate spelling, grammar, and punctuation.

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