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. Author manuscript; available in PMC: 2010 Jan 25.
Published in final edited form as: Med Care. 2007 May;45(5 Suppl 1):S12–S21. doi: 10.1097/01.mlr.0000254567.79743.e2

TABLE 3.

Examples of Items Eliminated at the Winnowing Stage

Item Stem Domain Reason for Removal
How many visits to mental health specialists have you made in the past 6 months Depression (treatment) Inconsistent with the domain definition
How much have you gotten fatigued easily Depression (fatigue) Semantic redundancy (24 in the bin)
I have difficulty sleeping Depression (sleep problems) Semantic redundancy (30 in the bin)
You are asked to place an “X” through these lines to indicate how you are feeling RIGHT NOW. Fatigue Item too narrow
Do you feel too much tiredness with normal or soft efforts? Fatigue Item confusing
Right now … do you feel such fatigue that you don't know what to do with yourself Fatigue Item vague
My motivation is lower when I am fatigued Fatigue Inconsistent with domain definition