# TOPIC: Is it possible to calculate sub scales ?

## Is it possible to calculate sub scales ? 1 year 7 months ago #107192

 guskorte Offline Fresh Lemon Posts: 1 Karma: 0 I will apply a questionnaire with 75 items. Suppose that I have 15 sub-scales of 5 items each. Question I) In order to calculate the value of sub-scaleA I need the average of 5 items. Can I use this formula? (==SUM(item1,item2, item10, item 25, item65)/5)? If not how can I do it? Question II) Would it be possible to use the same expressions used in the SPSS statistical software?? Is there any plug in that I can use in order to import it into Lime survey?? Question III) Let's say I have the average of the group and the total population, how can I make chart comparing the results at the end of the test to the participant?? For example: I have 15 subscales and I have to compare each subscale with the average of the group?!? How to do it? I am planning to use it for my PhD study. Thanks Gustavo The administrator has disabled public write access.

## Is it possible to calculate sub scales ? 1 year 7 months ago #107197

 DenisChenu Offline Moderator Lime Posts: 7880 Thank you received: 1079 Karma: 313 Question I: I think you can use that in another Equation question type. manual.limesurvey.org/Expression_Manager....27that.27_variables {sum(that.sq_QX.NAOK)/15} for X axis sum {sum(that.sq_QY.NAOK)/5} for Y axis sum for example Assistance on LimeSurvey forum and LimeSurvey core developpement are on my free time (Say thanks ?). A bug not reported is a bug not corrected. | Please, read the documentation | La doc en français à besoin de vous Official LimeSurvey Partner | Web development | SkeletonQuest, RWD for LimeSurvey The administrator has disabled public write access.

## Is it possible to calculate sub scales ? 1 year 7 months ago #107205

 tpartner Offline LimeSurvey Team Posts: 5261 Thank you received: 1097 Karma: 457 Question II: No, you cannot use SPSS syntax - see Expression Manager for allowed syntax. Question III: You can use Expression Manager to pipe values into your table - manual.limesurvey.org/Expression_Manager#Tailoring.2FPiping. . Cheers, Tony Partner Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise. LimeSurvey is open-source and run entirely by volunteers so please consider donating to support the project. The administrator has disabled public write access.
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