Missing data eliminate cases

1. Missing data is generally coded as 9
using SPSS software package. Zero or -
1 can also be used.
1

2. If there are only a few
cases where one or more items do not
have a response, depending on the
sample size, these few cases can be
eliminated without negatively
impacting the analysis.
2

3. 3
Person Item 1 Item 2 Item 3 Item 4
Bob 3 5 6 3
Fred 2
Sally 1 3 4 1
Zelda 2 4 5 3

4. 4
Person Item 1 Item 2 Item 3 Item 4
Bob 3 5 6 3
Sally 1 3 4 1
Zelda 2 4 5 3