Demonstration for solving the homework problem assigned on Jan 20.
Use SPSS to compute the mean, median, standard deviation, and standard error of the mean for the following set of data. Report your results in an APA-style table of descriptive statistics.
| |Score |
| | |
|Group 1 |4 4 5 6 4 |
| | |
|Group 2 |2 4 4 3 4 |
| | |
|Group 3 |6 4 4 5 6 |

One of the first things you needed to do was figure out how to enter the data. Remember, on the SPSS data spreadsheet, rows contain cases, and columns contain variables. So, how many variables to we have. Certainly Score is a variable. Are there any other variables? Some careful thinking (also spending some time working through the various tutorials available) should have lead you to a realization that we need a group identifying variable, Group, say.

So, the first thing I do, after starting SPSS, is to go to the Variable View tab (at the bottom of the SPSS Data Editor) and enter my two variable names (see Figure 1 below).

|[pic] |
|Figure 1 |

Next, I switch to the Data View tab and enter the data for each variable (Figure 2). Everyone in group 1 gets a 1 under Group, those in group 2, get a 2 under group, and so on. Under score, I enter the scores corresponding to each individual entered under Group. See the next screen shot.

|[pic] |
|Figure 2 |

Now, save the data (to the desktop or somewhere else) before it