Hi Scholars,
Can anybody provide me about details of recommended cut off criteria for validity test (SPSS) with respective mentioned publications ?
There is no specific test for validity in SPSS or anywhere else. Instead, you need to formulate and test hypotheses about how your measure(s) should perform. I suggest you look up the concept of "construct validity" and its various components.
there are no cut off points for SPSS to test validity the researchers must formulate their study hypothesis.
The cut off score for each scale is determined by the author of the scale based on recommended suggestions from experts in the field. In addition, criterion related validity will help, through comparing the scale score with other valid scales.
Example on this issue is Beck Depression Inventory,
· (0) I do not feel sad.
· (1) I feel sad.
· (2) I am sad all the time and I can't snap out of it.
· (3) I am so sad or unhappy that I can't stand it.
When the test is scored, a value of 0 to 3 is assigned for each answer and then the total score is compared to a key to determine the depression's severity. The standard cut-off scores were as follows:[7]
· 0–9: indicates minimal depression
· 10–18: indicates mild depression
· 19–29: indicates moderate depression
· 30–63: indicates severe depression.
For more details, you can log to the following web site for BDI
https://en.wikipedia.org/wiki/Beck_Depression_Inventory
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