Table 4: Changes in reported knowledge and expected changes in behavior.
Treatment group | Survey provided new information | Own behavior expected to change | Others behavior expected to change |
1. Saw text only | 0.62*** | 0.51*** | 0.38*** |
2. Saw text + Whale | 0.56*** | 0.52*** | 0.41*** |
3. Saw text + photo | 0.53*** | 0.66*** | 0.51*** |
4. Saw photo only | 0.32*** | 0.61*** | 0.48*** |
p-value for test of equal means | 0.00 | 0.01 | 0.02 |
Fisher-Hayter test statistics | |||
Group 1 vs. 2 | 2.29 | 0.34 | 1.04 |
Group 1 vs. 3 | 2.59 | 4.15^ | 3.94^ |
Group 1 vs. 4 | 9.07^ | 2.93 | 2.94 |
Group 2 vs. 3 | 0.78 | 3.87^ | 3.12 |
Group 2 vs. 4 | 7.19^ | 2.65 | 2.09 |
Group 3 vs. 4 | 5.37^ | 1.15 | 0.96 |
Each column represents a separate OLS regression.
*p < 0.05; **p < 0.01; ***p < 0.001 for F tests of zero means; ^Significant at 5 percent level (critical value = 3.32).