3rd Level
What is 3rd Level?
3rd Level is essentially a multiple filter. It allows you to
add a third dimension to your study. Without it you could only
ask, "what did respondents purchase based on marital status?".
If you add occupation to 3rd level you can ask "by occupation,
what did people purchase based on marital status?". The only
way to do this without 3rd level would be to filter for each occupation
individually.
Page Built From 
You can either choose a 3rd level question (default) or study.
You are restricted to one 3rd level question, but there is no
restriction on the number of 3rd level studies.
To choose a 3rd level question, click on the 3rd Level tab on
the right hand side of your question selection view, then click
in the white area below 
to make sure the questions appear on the left. Now you may select
your 3rd level question. To choose a 3rd level study, click on
the 3rd Level tab on the right hand side of your question selection
view, then click in the white area below the 
to make sure the available studies appear on the left. Now you
may select your 3rd level studies.
Note: When you use a 3rd level question AND 3rd level studie(s)
at the same time, you will be forced to view the results of all
included studies as one. Make sure you have read the rest of this
page to ensure that all of the possible respondents get included
in these numbers. Also, it is usually best to have the most recent
database as your primary study when using 3rd level studies.
If you are using 3rd level
studies, some questions icons in your study may turn yellow or
red. Yellow means that the responses to a question are different
from one database to another, and therefore you must recode
to turn the question green. Red means the question does not exist
in your third level database, and there is nothing that can be
done about that. Green of course means that everything has stayed
the same and you can use the question without a problem.
Page Display
Although 
is the default and helpul in a quick export, I prefer 
.
When you use Z-Axis Pages on a question like occupation, you get
a neat little tabs saying for example 
at the bottom of a page with numbers filtered for each individual
response on its own page. Switching between the formats may require
you to juggle the questions around a bit, so as always pay careful
attention to what is going on with the numbers and what they mean.
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