> This was the first of many such findings: income, marital status and education all influence experienced happiness less than satisfaction, and we could show that the difference is not a statistical artifact.

Is that saying affect of (income, marital status and education) on experienced happiness < affect of (income, marital status and education) on satisfaction, or is it saying affect of (income, marital status and education) on experienced happiness < affect of (satisfaction) on experienced happiness ?