Table S4.

Statistical comparison of Iowan farm and nonfarm residents’ ranked priorities for agricultural programs and policies

Total (n = 1,043)NonfarmFarmDifference
PriorityMeannSDMeannSDMeannSDMeandfPooled varianceSEtP value
Drinking water quality4.521,0430.784.539110.774.421320.880.111,0410.610.071.560.12
Aquatic life water quality4.051,0390.984.089080.953.841311.190.241,0370.960.092.620.01
Increase rural job opportunities3.981,0400.973.979080.964.061320.99−0.091,0380.930.09−0.970.33
Improve flood control3.961,0401.033.989081.023.871321.110.101,0381.060.101.090.28
Swimming water quality3.661,0391.063.709071.033.381321.210.321,0371.120.103.300.00
Improve game wildlife habitat3.521,0401.113.539081.093.471321.230.061,0381.240.100.550.58
Reduce greenhouse gases3.471,0361.263.529061.233.121301.380.401,0341.570.123.430.00
Increase tourism opportunities3.451,0391.083.509081.053.151311.270.351,0371.160.103.510.00
Increase crop production3.391,0351.153.389041.143.501311.21−0.121,0331.330.11−1.090.27
Improve nongame habitat3.311,0401.153.359091.133.041311.240.311,0381.310.112.890.00
Restore wetlands3.291,0391.163.339081.143.021311.250.311,0371.330.112.910.00
Restore native prairie3.271,0391.133.319071.113.021321.210.281,0371.270.102.720.01
Increase livestock production3.241,0351.183.239031.183.301321.18−0.061,0331.400.11−0.560.57
Landscape beautification3.161,0371.053.199061.032.921311.130.271,0351.090.102.760.01
Increase recreation opportunities3.151,0331.083.209021.062.821311.210.371,0311.160.103.700.00
  • Priorities were rated on a five-point scale ranging from 1 (no priority) to 5 (very high priority). Statistics for total population are shown also. For more information on survey design and analysis, see ref. 73.