In the cross-cultural investigation of helping behaviour by Levine et al. (2001), researchers analyzed the relationship between various community-level variables and the overall helping rate. Which of the following best describes the correlation found between a city's economic productivity (measured by Purchasing Power Parity) and the level of helping behaviour?
A statistically significant positive correlation (r=0.43r = 0.43r=0.43)
A non-significant negative correlation (r=−0.26r = -0.26r=−0.26)
A statistically significant negative correlation (r=−0.43r = -0.43r=−0.43)
A non-significant positive correlation (r=0.03r = 0.03r=0.03)
