I am using the SDQ and Achenbach suite scales and at the point of cleaning data.
I want to ensure that I have entered the correct measure for each of these items both in terms of methodological robustness and also to ensure that my analyses are not compromised (ie, total score will be a Scale) . Both Measures for items have the following options: Not at all true of me (0), Sometimes/somewhat true of me (1), Often/Very true of me (2).
Thanks in advance.
Hello Debbie,
In my opinion, the variables should be defined as ordinal variables. Because they are not continuous variables. "Often/very true of me" is not twice as much as "Sometimes/somewhat true of me".
I think it can also be grouped as a continuous variable depending on the normality of the instruments.
How you enter them into SPSS should be based on how you plan to use them. As to whether the data are of a certain type, that depends on the research questions that you are addressing, not the particular digits that you type into the computer. As the statistician in ( https://marces.org/EDMS623/Lord%20FM%20(1953)%20On%20the%20Statistical%20Treatment%20of%20Football%20Numbers.pdf ) said, the numbers don't remember where they are from.
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