Reference no: EM132238118

BIOSTATISTICS AND EPIDEMIOLOGY Assignment - SPSS Lab Mini project

In this project, students will begin developing a variety of skills necessary for data analysis. The SPSS/Lab Mini projects are worth 30% of the total course grade (10% each). In the first SPSS/Lab Assignment, students will students will learn how to:

• import data from a spreadsheet
• data exploration with frequencies and scatterplots
• perform descriptive statistics
• interpret results from descriptive statistics
• construct new measures

In addition to the written report that will be submitted which includes all the figures and descriptions, students must also submit their syntax files.

In this data analysis project, we will examine 5 variables- community area and four additional variables that students will choose. One of these must be an indicator or independent variable. These are denoted as such with the "iv" in the name. The other three variables should be health status measures or dependent variables, which I have denoted in the dataset with "dv" in the name.

Part I: Import data from spreadsheet

Refer to the SPSS introduction screencast.

Part II: Construct new measures and data exploration

A. Create a new variables.

Create a new variable called communityarea and base it on the map of Chicago Community Areas.

We want to make a new community area measure that has 9 values, 1-9.

Create new measures for three variables. One of these variables should have a name that starts with iv. The rest should be variables whose names start with dv.

Creating new variables can be done in several ways. See the screencast for more information. Each of these must have labels for each of the categories.

B. Construct scatterplots

Since community area is a nominal measure, including it in a scatterplot isn't the best use of our time. In order to get a sense of the relationships between our IV and our three different DVs, we should conduct three scatterplots:

1. IV and DV1

2. IV and DV2

3. IV and DV3

Scatterplots can be done via the SPSS dropdown menu. In SPSS click on "Graphs" ? "LEGACY DIALOGUES" ? "Scatter/Dot". Choose "Simple Scatter" and click on "Define". Next click on the name of your variables in the window on the left and move over to X axis space and Y axis space. In general, you want the IV to go into the X axis and your dvs to go into the Y axis (one at a time). Be sure to choose the new variables you have created. Do this three times, one for each of the three scatterplots required above.

Be sure to copy and paste the syntax SPSS reported in the viewer window into your syntax file.

Part III: Perform descriptive statistics

1. Use SPSS to find the standard deviation, variance, minimum, maximum, mean, median, and mode for your iv and three dvs. This can be done by clicking on "Analyze" → "Descriptives" → "Frequencies". Click on a variable and click the arrow to move it into the variable window. Then, click on "statistics" and make sure that the boxes next to Mean, Median, Mode, Minimum, Maximum, Std. deviation, and Variance are all checked.

2. Determine the mean value for each of your variables for each community area. To do this, click "Analyze" → "Compare Means" → "Means". In the dependent window, make sure your new measures for your iv and your 3 dvs go there. Then, put your community area variable into the dependent list. Click "ok".

Part IV: Interpret results

In the interpretation part of this assignment describe the results for each of your analyses. Write one paragraph for each figure. You should have:

Figure 1: Scatterplot of IV and DV1.

Figure 2: Scatterplot of IV and DV2.

Figure 3: Scatterplot of IV and DV3.

Table 1: Descriptive statistics for IV, DV1, DV2, DV3*** (you will need to make this one from scratch in Excel or Word)

Table 2: Means Comparison Table.

These tables must be neat and well-constructed. DO NOT PASTE images from SPSS output into document. One way to know if you've pasted images into a MS Word document is to try to edit your table. If you can click on it and edit the text of it, you've pasted a table. If you cannot, you have likely pasted an image. One easy way to get your images into a manageable MS Word file is to export from the output file to a word document (File→Export).

Your interpretation should be written in a formal, academic tone. This means third person- leave out all mention of you and your thoughts. Paragraphs should be 3-5 sentences.

Attachment:- Assignment File.rar