Table 1 English, Spanish and Brazilian versions of published studies using dimensional assessment and other methods to reduce the number of items of IQCODE
Item | Study based on a dimensional structure (factorial) analysis | |||||
|---|---|---|---|---|---|---|
No | Yes | |||||
Morales et al.,1995 [27] | Perroco et al.,2009 [28] | Jorm, 1994 [7] | Fuh et al., 1995 [10] | Tang et al., 2004 [13] | ||
(Corr, ROC)a | (ROC) | (PCA) | (PCA, DA) | (RA) | ||
1. | Recognizing the faces of family and friends | Xb | X | X | X | |
2. | Remembering the names of family and friends | X | ||||
3. | Remembering things about family and friends | X | ||||
4. | Remembering things that have happened recently | |||||
5. | Recalling conversations a few days later | |||||
6. | Forgetting what he/she wanted to say in the middle of a conversation | X | ||||
7. | Remembering his/her address and telephone number | X | X | |||
8. | Remembering what day and month it is | |||||
9. | Remembering where things are usually kept | |||||
10. | Remembering where to find things which have been put in a different place from usual | |||||
11. | Adjusting to any change in his/her day-to-day routine | X | X | X | ||
12. | Knowing how to work familiar machines around the house | X | X | X | ||
13. | Learning to use a new gadget or machine around the house | X | ||||
14. | Learning new things in general | X | ||||
15 | Remembering things that happened to him/her when he/she was young | X | X | X | ||
16 | Remembering things he/she learned when he/she was young | X | X | X | ||
17 | Understanding the meaning of unusual words | X | X | X | X | |
18 | Understanding magazine or newspaper articles | X | X | X | X | |
19 | Following a story in a book or on TV | X | X | |||
20 | Composing a letter to friends or for business purposes | X | X | X | X | X |
21 | Knowing about important historical events of the past | X | X | X | ||
22 | Making decisions on everyday matters | X | ||||
23 | Handling money for shopping | |||||
24 | Handling financial matters, e.g. the pension, dealing with the bank | X | ||||
25 | Handling other everyday arithmetic problems | |||||
26. | Using his/her intelligence to understand what's going on and to reason things through | X | ||||