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- The data are performance data for 149
air traffic controllers.
- The variables in the data set are:
- control: The identifying number of the air traffic
controller
- time: The number of the trial (between 1 and 6)
- measure: The number of successful landings for the
trial
- ability: The cognitive ability score (combined ASVB
score)
- constant: The intercept term, with value 1 throughout
- timesq: time x time, a quadratic term.
- More details about the data are available in Kanfer &
Ackerman (1989).
- The data are listed in the file KANFER.PSF
in the TUTORIAL
folder.
- The first portion of KANFER.PSF
is shown in the PSF
window below.
- Click the Open
option on the File
menu to load the Open
dialog box.
- Select the PRELIS
Data (*.psf) option on the Files
of type drop-down list box.
- Select the file KANFER.PSF in the TUTORIAL
folder.
- Click on the Open button to open KANFER.PSF
in a PSF
window.
- Click on the Linear Model option on
the Multilevel
menu.
- Select the Title and Options option
on the Linear
Model menu to load the Title
and Options dialog box.
- Enter the string Kanfer
and Ackerman data: Variance decomposition in the
Title:
string field.
- Click on the Next
button to load the Identification
variables dialog box.
- Select the label control.
- Click on the Add
button of the Level
2 ID Variable section
to produce the following Identification
variables dialog box.
- Click on the Next
button
to load the Select
Response and Fixed Variables dialog box.
- Select the label measure.
- Click on the Add
button of the Response
Variables section to produce the following
Select
Response and Fixed Variables dialog box.
- Click on the Next
button
to load the following dialog box to produce the following
Random
Variables dialog box.
- Click on the Finish
button to produce the following text editor window
for KANFER.PR2.
- Click on the Run
PRELIS button to produce the following text editor
window for KANFER.OUT.
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