And for each of these statements, just check the box that comes closest to your opinion of how true it is. In your opinion, how true is this?
C. The greenhouse effect is caused by a hole in the earth's atmosphere.
Code | Label |
---|---|
1 | Definitely true |
2 | Probably true |
3 | Probably not true |
4 | Definitely not true |
8 | Don't know |
9 | No answer |
0 | Not applicable |
1993 | 1994 | 2000 |
---|---|---|
267 | 211 | 202 |
609 | 548 | 443 |
188 | 211 | 221 |
187 | 143 | 149 |
222 | 228 | 192 |
84 | 45 | 69 |
49 | 1606 | 1541 |
Valid cases | 3379 |
Missing cases | 59087 |