introduction to spss RESEARCH METHODS & STATISTICS HANDBOOK PHẦN 3 pot

21

Double-click on the chart to move the histogram from the Chart Carousel Window to

a Chart Window. The menu bar and tool bar change to show editing facilities.

First, click on CHART then OPTIONS and NORMAL CURVE - then hit OK. The

normal curve superimposed over the histogram is the one for the above mean and

standard deviation. Admittedly, it‟s difficult to make a decision with such a small

sample, but does the curve appear to be a good fit to the histogram?

Now, click on the icon „swap axes‟. Does the histogram look better with vertical bars

or horizontal bars?

Now try some of the other icons and tools to change the chart. These changes require

the appropriate part of the chart to have been selected. Click on any bar. The bars will

become highlighted with small black squares at their corners. Then click on the Fill

Pattern - tool button (the rectangle with diagonal shading). To apply a pattern, click

on it and then click on apply. Once you have finished with the patterns, click on close.

Also, try the Colour Palette tool button (the one with the pen) and the Bar Labels icon

tool button (the one with the fingernails).

You can also change the style of the line showing the Normal curve, and the fill

pattern and colour of the background of the histogram. Once you have finished with

your work, select FILE and then SAVE CHART. Save your histogram as

artwork.chz

To copy or move a chart into Word click on EDIT and then select COPY the chart.

To move to Word minimise SPSS and open word. If Word is already open then press

ALT & TAB to move between programs. Once in Word, go to EDIT PASTE.

Finally, exit from SPSS for windows by selecting FILE EXIT

Section II: Manipulating the Data in the Matrix

(Computing, Recoding, Filtering and Deleting Data)

Computing Values

Start off SPSS and open the file family.sav (you should find this file on your M:

drive in the folder that you named survey). We shall use the COMPUTE command

to build up a new variable that will be labelled BMI, which stands for body mass

index. This is calculated as:

Body mass index = weight (pounds)/ height (inches)2

Select TRANSFORM and then COMPUTE and set the Target Variable to bmi.

Click on Type & Label and enter the label body mass index in the label box. Click

continue to return to the Computer Variable dialog box. Using the source list on the

left and the calculator pad in the centre, build up