National Income Dynamics Study Secure Data 2012
Wave 3
South Africa, 2012
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Reference ID
zaf-saldru-nidssd-2012-v3.0.0
Producer(s)
Southern Africa Labour and Development Research Unit,
Collections
Created on
Aug 24, 2018
Last modified
Feb 19, 2026
Page views
316805
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- Data files
- Admin_W3_Secure_V3.0.0_metadata
- Adult_W3_Secure_V3.0.0_metadata
- Child_W3_Secure_V3.0.0_metadata
- hhderived_W3_Secure_V3.0.0_metadata
- HHQuestionnaire_W3_Secure_V3.0.0_metadata
- HouseholdRoster_W3_Secure_V3.0.0_metadata
- indderived_W3_Secure_V3.0.0_metadata
- Link_File_W3_Secure_V3.0.0_metadata
- Proxy_W3_Secure_V3.0.0_metadata
j18 - Respondent's eyesight strength (w3_a_hlvisdes)
Data file: Adult_W3_Secure_V3.0.0_metadata
Overview
Valid:
18689
Invalid:
3768
Type:
Discrete
Decimal:
0
loc_start_pos:
3790
loc_end_pos:
3791
Width:
2
Range:
-9 - 6
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 2448 |
13.1%
|
| -8 | Refused | 6 |
0%
|
| -5 | Not applicable | 0 |
0%
|
| -3 | Missing | 3 |
0%
|
| 1 | Excellent | 4700 |
25.1%
|
| 2 | Very good | 5390 |
28.8%
|
| 3 | Good | 4645 |
24.9%
|
| 4 | Fair | 1063 |
5.7%
|
| 5 | Poor | 397 |
2.1%
|
| 6 | Blind | 37 |
0.2%
|
| Sysmiss | 3768 |
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.