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. Author manuscript; available in PMC: 2017 May 16.
Published in final edited form as: Psychol Test Assess Model. 2016;58(2):255–307.

Table 1. DIF hypotheses generated by nine content experts for applied cognition - general concerns items.

Item Stem Gender Age Race Ethnicity Language Education Diagnosis
I have had trouble forming thoughts (8a) 3a Women higher impairment (3)b 4 Older higher impairment (2) 2 4 Higher education higher impairment (2) 4 Depression /anxiety higher impairment (1); Ill higher impairment (1); Cancer higher impairment (1)
My thinking has been slow (4a, 6a, 8a) 4 Older higher impairment 3
My thinking has been foggy 2 2 Older higher impairment 5 3 2
I have had trouble concentrating (6a, 8a) 3 Women higher impairment (3) 3 Older higher impairment (2) 2 5 Cancer higher impairment (2); terminally ill/pain higher impairment (1); Depression /anxiety higher impairment (1)
I have had to work really hard to pay attention or I would make a mistake (6a, 8a) 2 2 Non-English higher impairment; Spanish higher impairment 4 Lower education higher impairment (2)
It has seemed like my brain was not working as well as usual (4a, 6a, 8a) 4 Older higher impairment (3) 2 Latinos higher impairment 2 Higher education higher impairment
I have had to work harder than usual to keep track of what I was doing (4a, 6a, 8a) 3 Older higher impairment (2) 2
I have had trouble shifting back and forth between different activities that require thinking (4a, 6a, 8a) 2 2
a

Number indicates total number of hypotheses;

b

Number of directional hypotheses; Italicized entries are those with 2 or more ratings in the same direction.

Note: The following short-form 8a item was not included in the analyses: “My problems with memory, concentration, or making mental mistakes have interfered with the quality of my life.”