Instructions
Work through this quiz to prepare for the Module 11 - Treating Depression Lab Part 1. This activity is included in the Labs and Other Activities portion of your grade. You have an unlimited number of attempts. To prepare for the lab, you must review each attempt and use the feedback to retake the quiz until you earn 100%. In other words, you cannot move on until you earn 100% on this quiz. But don't let your good productive struggle devolve into frustration. If you carefully reviewed the feedback after two attempts, and you still haven't earned 100%, use the discussion board below to ask for help. Give your peers or me some time to respond. Then return to the discussion board, review the responses, and try again. Or you can also contact me directly. My contact information is on the homepage of our course in Canvas.
Prepare for the Online Lab
Use this activity to:
- Obtain information from a spreadsheet.
- Identify the explanatory variable and the response variable.
- Select an appropriate visual display to summarize the data.
- Select the appropriate numerical summaries to summarize the data.
Below is the information you will find in the lab on the next page (after you finish this preparation quiz).
Context
Clinical depression is a recurrent illness requiring treatment and often hospitalization. Nearly 50% of people who have an episode of major depression will have a recurrence within 2-3 years. Being able to prevent the recurrence of depression in people who are at risk for the disease would go a long way to alleviate the pain and suffering of patients. During the 1980's the federal government, through the National Institutes of Health (NIH), sponsored a large clinical trial to evaluate two drugs for depression. There were 3 treatment groups. Patients received either Imipramine (Imip), Lithium (Li), or a Placebo (Pl). Researchers randomly assigned patients to one of the 3 treatment groups and followed them for 2-4 years to track any recurrences of depression. (Prien et al., Archives of General Psychiatry, 1984).
Variables
- Hospt: Which hospital the patient was from: Labeled 1, 2, 3, 5 or 6
- Treat: 0=Lithium; 1=Imipramine; 2=Placebo
- Outcome: 0=Success 1=Failure (no recurrence of depression)
- Time: Number of weeks until a recurrence (if outcome=1) or until study ended (if outcome=0)
- AcuteT: How long the patient was depressed before the start of the current study, measured in days
- Age: Age in years
- Gender: 1=Female 2=Male
Data
- Open the depression data set in the Stats at Cuyamaca College group on StatCrunch (directions - opens in a new tab).
Prompt
In this quiz, you'll explore the depression datafile in StatCrunch and familiarize yourself with the first research question related to this study. In the next activity you'll use StatCrunch to investigate the first research question.