Wednesday, October 7, 2009

SPSS HELP E-mail

Hey Everyone,
This is coming to you both on the Blog and via e-mail. Future things will all be posted on the blog but until we're all on the blog there will be a few more mass e-mails. Sorry for the inbox clutter.
We are working to put together a review session specifically for SPSS intro on Friday. Location will be the classroom in the library (ask at the library front desk). Time TBA.
We will be focusing on what you need to know to do the homework, class notes will be discussed NEXT week at the normal review sessions. However, we only know SPSS and any questions on how to use "R" need to be directed to Dr. Kim. Please bring your questions to review or post them to the blog if you can. If you can't make the review or aren't able to work the blog yet feel free to e-mail one of us and we'll do everything we can short of doing it for you =). We will be working from an example data set on Friday that does not match the homework assignment.


In case you don't / can't come here's a play by play on how to use SPSS...
The following is taken from Dr. Mari Clements notes with permission...

To obtain estimates of central tendency... ( 3 different ways)

After loading data set into SPSS...
Click on Analyze (one of the options in the top toolbar)
Then select... Descriptive Statistics --> Descriptives --> (click over variables of interest) --> Options --> (check desired stats) --> Continue --> OK

Click on Analyze (one of the options in the top toolbar)
Then select... Descriptive Statistics --> Frequencies --> (click over variables of interest) --> Statistics --> (check desired stats) --> Continue --> OK

Click on Analyze (one of the options in the top toolbar)
Then select... Descriptive Statistics --> Explore --> Dependent List --> (click over variables of interest) --> OK

For Interquartile range: Follow the above directions.


For the graphs/charts you need...

Graphs --> Legacy Dialogs --> (Select desired plots) --> (If necessary, specify type, e.g. simple boxplot) --> (click over desired variable) --> OK

Analyze --> Descriptive Statistics --> Frequencies --> (click over variables of interest) --> Charts --> (check desired stats) --> Continue --> OK

Analyze --> Descriptive Statistics --> Explore --> Dependent List --> (Click over variables of interest) --> Plots --> (Check desired plots) --> Continue --> OK

For Creation of histograms with normal curve imposed:
Analyze --> Descriptive Statistics --> Frequencies --> (click over variables of interest) --> Charts --> Histogram (select "with normal curve") --> continue --> OK
*** you will need to select "simple boxplot" in order to make the required boxplot chart

To make "Z-scores" with SPSS (you can calculate these by hand)
Analyze --> Descriptive statistics --> Descriptives --> (Click over varibles of interest) (select "save standardized values as variables --> OK


We hope that makes sense. Please e-mail or blog any questions. You can also bring your questions to review on friday.

~Your TA's =)

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