Research Design Assignment 1. What is the difference between a statistic and a parameter? Research Question: What is the average intelligence score of college students at MTSU? 2. Define the population. 3. Give an example of a sample. 4. Give an example of a statistic for the sample. 5. What is the population parameter? A psychologist who lead two grief support groups wanted to evaluate the impact (if any) that mindfulness has on grief recovery. One grief support group received training on mindfulness in addition to group therapy. The other grief support group did not receive training on mindfulness. Participants completed a grief scale at the end of six weeks of group therapy. The psychologist compared the grief scale scores of the two groups. 6. What is the independent variable or predictor? 7. What is the dependent variable or outcome? 8. What type of research design was used? Justify your answer. A medical researcher randomly selected 30 hospital patients and then randomly assigned them to be in either the treatment condition or the control condition. Patients in the treatment condition received a cold compress in addition to a Tylenol. Patients in the control condition received a Tylenol. The patients were asked to rate their current pain level (0 = No Pain, ..., 10 = Worst Pain Ever) one hour after receiving the Tylenol or the Tylenol with a cold compress. The researcher compared the pain ratings based on the type of treatment received. 9. What is the independent variable or predictor? 10. What is the dependent variable or outcome? 11. What type of research design was used? Justify your answer. The Survey of Texas Adults 2004 (ICPSR4297) was based on a sample of Texas households. Random-digit- dialing was used to select households to be interviewed. The survey data were collected via a telephone interview of the randomly selected participants. 12. What type of research design was used? Justify your answer. + 13. The assignments will use data from the Survey of Texas Adults 2004 (ICPSR4297). The variables used for future assignments are listed below. Determine the variable type (qualitative, quantitative) and measurement level (nominal, ordinal, interval, ratio) for each of the variables listed below. You will need to refer to the codebook to classify each variable. A web-based codebook is available at https://www.icpsr.umich.edu/web/NACDA/studies/4297/variables. Click on a variable name to see how it is coded. Alternatively, the complete codebook is available as a PDF at https://www.icpsr.umich.edu/web/NACDA/studies/4297/datadocumentation. Variable Label A001 Vote A020 Political Orientation C015 Prevent Future Violence C017 Kill to Defend C018 Doctor Assisted Death C019 Abortion Legal C020 Death Penalty CASE Respondent ID H001 Respondents Age H002 H006 Spanish/Hispanic Descent Degree of Schooling (base your answer on our sample, which is limited to High School Degree, Associates Degree, Bachelor's Degree) OSR4 Gender Nominal, Ordinal, Qualitative or Interval, or Ratio? Quantitative?