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Table 8 p values after Spearman’s rank order correlation coefficients between sociodemographic ordinal variables (Appendix A: Table 4) and opinion ordinal variables (Appendix A: Table 5)

From: Acceptability of genetically engineered algae biofuels in Europe: opinions of experts and stakeholders

Sociodemographic ordinal variablesOpinion ordinal variablesSpearman’s rank order coefficientp value
AgeExpected benefits of GE algae biofuel compared to established biofuels
Less environmental impact− 0.170.025
Reduced GHG emissions and climate change− 0.190.023
No competition with food− 0.020.915
Superior engine performance− 0.090.268
New rural jobs− 0.130.389
Reduced fuel import dependency0.030.637
Expected benefits of GE algae biofuel compared to fossil fuels
Less environmental impact− 0.050.345
Reduced GHG emissions and climate change− 0.050.391
Less occupational risk− 0.250.326
New rural jobs− 0.060.807
Reduced fuel import dependency− 0.020.949
Expected benefits of GE algae biofuel compared to natural strains
Improve productivity− 0.230.148
Require less energy− 0.230.109
Need less nutrients uptake− 0.180.326
Need less use of fresh water− 0.080.902
Improve the controllability of the process− 0.20.355
Improve economic feasibility− 0.190.554
GMOs should partially replace fossil fuels− 0.020.255
Perceptions of social acceptance of GE algae biofuel
Opinion about general social acceptance− 0.150.167
Variation of public acceptance in case of using gene-editing techniques− 0.040.662
Opinion about regulating gene-edited organisms as GMOs0.090.665
General risk perception of fuels/power sources
Fossil fuels0.060.528
Established biofuels0.010.858
GE algae biofuel0.060.972
Solar photovoltaic power0.060.851
Wind power0.070.907
Hydropower− 0.020.897
Educational levelExpected benefits of GE algae biofuel compared to established biofuels
Less environmental impact0.020.044
Reduced GHG emissions and climate change− 0.030.001
No competition with food0.120.058
Superior engine performance− 0.040.314
New rural jobs0.060.040
Reduced fuel import dependency− 0.020.126
Expected benefits of GE algae biofuel compared to fossil fuels
Less environmental impact0.040.158
Reduced GHG emissions and climate change− 0.060.085
Less occupational risk− 0.080.619
New rural jobs0.020.068
Reduced fuel import dependency− 0.130.071
Expected benefits of GE algae biofuel compared to natural strains
Improve productivity0.010.598
Require less energy− 0.030.021
Need less nutrients uptake0.060.696
Need less use of fresh water0.030.860
Improve the controllability of the process− 0.060.321
Improve economic feasibility− 0.050.313
GMOs should partially replace fossil fuels− 0.020.420
Perceptions of social acceptance of GE algae biofuel
Opinion about general social acceptance− 0.090.927
Variation of public acceptance in case of using gene-editing techniques0.040.776
Opinion about regulating gene-edited organisms as GMOs0.060.216
General risk perception of fuels/power sources
Fossil fuels− 0.080.933
Established biofuels0.050.740
GE algae biofuel− 0.070.335
Solar photovoltaic power0.040.637
Wind power− 0.150.780
Hydropower− 0.160.086
Experience in algae industryExpected benefits of GE algae biofuel compared to established biofuels
Less environmental impact00.927
Reduced GHG emissions and climate change− 0.110.659
No competition with food0.010.397
Superior engine performance− 0.010.624
New rural jobs− 0.060.828
Reduced fuel import dependency0.030.727
Expected benefits of GE algae biofuel compared to fossil fuels
Less environmental impact− 0.110.560
Reduced GHG emissions and climate change− 0.110.822
Less occupational risk0.040.928
New rural jobs− 0.010.989
Reduced fuel import dependency− 0.020.977
Expected benefits of GE algae biofuel compared to natural strains
Improve productivity− 0.060.416
Require less energy0.030.488
Need less nutrients uptake− 0.040.256
Need less use of fresh water0.080.107
Improve the controllability of the process− 0.060.953
Improve economic feasibility− 0.150.174
GMOs should partially replace fossil fuels0.040.366
Perceptions of social acceptance of GE algae biofuel
Opinion about general social acceptance00.657
Variation of public acceptance in case of using gene-editing techniques0.020.666
Opinion about regulating gene-edited organisms as GMOs− 0.020.410
General risk perception of fuels/power sources
Fossil fuels− 0.090.450
Established biofuels− 0.020.951
GE algae biofuel− 0.020.784
Solar photovoltaic power− 0.020.714
Wind power− 0.030.808
Hydropower− 0.060.835