missing values and raw scores

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genver
Posts: 1
Joined: Sun Mar 01, 2015 5:21 am

missing values and raw scores

Postby genver » Sun Mar 01, 2015 5:33 am

Hi, I am trying to calculate the raw score of a 76 item, 4 point likert scale questionnaire. First, a subscore has to be calculated, for example,

DATASET ACTIVATE DataSet1.
COMPUTE NewVar=SS_49AT3 + SS_52AT3 + SS_56AT3 + SS_59AT3 + SS_63AT3.
EXECUTE.

However, from here I need to know how many values were missing out of the SS variables and if possible create a new variable with the count. Then I multiple the count by 2 then subtract from what the sum of the "NewVar". However, I am not sure what the correct syntax would be.

I have the following drafts:
COUNT MISSING=SSI_49AT3 to SS_63AT3 (999) . or COMPUTE NMISS=NMISS?

Any help would be appreciated! Also the missing values are user defined 999
GerineL
Moderator
Posts: 1477
Joined: Tue Jun 10, 2008 4:50 pm

Re: missing values and raw scores

Postby GerineL » Mon Mar 02, 2015 12:00 pm

If your missings are all entered as 999, the count one seems to be most appropriate.
Is this the case?

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