Math Forum / Math Software / SPSS / April 2008

I have a question about the use of ANCOVA. In a repeated measure
design with three levels, (neuropsychlogical domains: memory,
executive, attention) on the within subject factor and three levels on
the between subject factor (Controls, Group2, Group3), i want to

IIRC, there's an easy way to search a range of variables for a given
value. (in one quick command, where part of it is v1-v50, or v1,v50)
something like do if any("apple" v1,v50), searching variables v1 - v50
for the string "apple"

This should be easy ...
I'm trying to flag any cases with missing data on one or more of the
variables, V1 through V20. Since the variables are all adjacent to
each other, I was hoping I could use a THRU statement instead of

I would like to look at the interaction effect of 2 independent
categorical variables on continuous dependent scale scores (calculated
as means). The difficulty is that the data is not normally
distributed. The dependent variables are very skewed towards positive

HELP! I need to plot the regression lines for both values of a
categorical variable. The Original Sequential Regression regressed a
continuous DV on a continuous variable and the categorical variable
and then the interaction term. I have SPSS 16 grad pack and I need to

I need to insert two blank cases before every case in my dataset, and
then have those two new blank cases have the same values on all
variables based on the third case:
Original Dataset

I got a problem with my structural equation model which consists of 4
latent constructs. Three of these are factors which are responsible
for a change of the 4th construct (unobserved endogenous variable).
The model is identified and a minimum is achieved. My problem is that

Hopefully, somebody has an idea or can give me a starting point on
this.
I have a sample of N=6800 with a given mean and standard deviation.
From this I want to draw a sub-sample of maximum size with another

I've got a string variable that contains ages for children in a family.
Maximum is five children.
Like this:
12

I wrote a program block with python, it works fine:
*#############################.
GET FILE = MainFile.
DATASET Name base.

I have only started using SPSS AMOS and have had to get up to scratch
rather quickly! As I have a lot of missing data I have decided to try
and overcome this (although maybe not the most sound of methods!) by
using a covariance matrix as the data file rather than using raw data.

I am Senior at NC State University graduating in two weeks. I have a
research paper due Monday and I have to incorporate SPSS into it, run
crosstabs and so forth. My question is:
I have gathered my own data from the US census Bureau and the US

Hello I have a question concerning dates and agg.  My dataset is as
follows:
ID  AdmissionDate
1   Dec 1, 2001

I have a problem which may be solved with python?
I have a big file with more than 1.3 Mio. cases and 300 variables. I
have another file with 14 variables and 150 cases, the first variabe
ist a string with the value of the variable in the first file (some of

does anyone know where I can find the
file format description of the SPSS SAV file?
Tanks a lot!
Martin