Difficulty seeing, even if wearing glasses or contact lenses (AF6)
Data file: wm
Overview
Valid:
2107
Invalid:
821
Minimum:
1.0
Maximum:
9.0
Mean:
1.087327954437589
Standard deviation:
0.3332846519889816
Type:
Discrete
Width:
5
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 1935 |
91.8%
|
| 2 | SOME DIFFICULTY | 166 |
7.9%
|
| 3 | A LOT OF DIFFICULTY | 5 |
0.2%
|
| 9 | NO RESPONSE | 1 |
0%
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.