A researcher was interested in whether employers assess candidates differently when looking at a written statement as compared to a verbal statement. To do this they randomly assigned participants to either make a written or verbal statement to apply for a job.
A panel of employers then rated the intellect and overall impression of each candidate by answering ten Questions for each of these variables on a balanced 0-9 point. A mean average of the questions was taken to give an overall score for each candidate on intellect and impression. A higher mean score meant a higher rating of intellect or impression. In addition, a single 0-9 rating of how likely they would be to hire them was also given where a higher score meant they would be more likely to employ.
You must assess whether the two methods of making a statement did yield significantly different results for only one of the measures. So, EITHER intellect OR impression OR likelihood to employ. Your choice.
Write your hypothesis here
Write the null hypothesis here
What is the level of measurement?
State and explain the level of measurement here
Is your data normally distributed?
Explain how you have assessed this and copy and paste any output from jamovi/SPSS used to inform your decision below
Do the two groups show homogeneity of variance?
Show how this was assessed and provide any copy and paste any output from jamovi/SPSS which is relevant.
State which test of difference (from those listed below) you are using and why you have selected it.
- Student’s t-test
- Welch’s t-test
- Mann Whitney U