Assignment task:
According to national surveys by the National Institute of Mental Health, anxiety is one of the most common mental health issues in the United States. You are a social worker working with families living in high-poverty, high-crime neighborhood; and you decide to study whether anxiety is high for the residents. The Beck Anxiety Inventory (BAI) is a frequently used measure of anxiety for adults and has a lower limit of 19 for moderate anxiety. You recruit a sample of 18 residents who complete the BAI. You are asking the following research question: Is residents' anxiety higher than moderate levels? The full dataset is below. Enter it into SPSS to complete the first set of problems (#1-5).
33 21 35 51 4 37
12 35 18 49 19 6
43 16 46 7 12 19
Question #1- Based on this question, what is the research hypothesis (not the null hypothesis - the research hypothesis).
Question #2 - Is the hypothesis one or two-tailed? Why?
Question #3 - Calculate the appropriate statistical test using SPSS. Copy / paste all relevant output in the space provided, making sure it is all viewable.
Question #4 - Write a Results section for your findings. Include the descriptive statistics, type of statistical test and results of the test, effect size, and confidence interval.
Question #5 - Assume results are statistically significant (regardless of what you find). What are two questions you would ask to better ascertain professional significance? Why / how are they important?
A new marketing strategist develops an advertisement for Brand X toothpaste and tracks number of sales for the next twelve months. Data shown below are monthly sales reports after his advertisements went live. Was his strategy more effective (as evaluated in number of sales) than the previous version, which had an average of 3120 the previous year? Use this dataset to answer questions #6-10.
2871 3746 2497 4708
2765 5205 5512 3965
3884 3479 2168 2333
Question #6 - Based on this question, what is the research hypothesis (not the null hypothesis - the research hypothesis).
Question #7 - Is the hypothesis one or two-tailed? Why?
Question #8 - Calculate the appropriate statistical test using SPSS. Copy / paste all relevant output in the space provided, making sure it is all viewable.
Question #9 - Write a Results section for your findings. Include the descriptive statistics, type of statistical test and results of the test, effect size, and confidence interval.
Question #10 - Assume results are statistically significant (regardless of what you find). What are two questions you would ask to better ascertain professional significance? Why / how are they important?
Final section: Answer the last question based on your own professional interests. Do not use examples provided in the textbook, lectures, online, et cet. Rather, come up with your own.
Question #11 - What is a psychology-related question you could ask that would be answered using a one-sample t-test? Would the hypothesis be one- or two-tailed? Why?