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Appendices
A. Correlations of self-assessed knowledge and each T/F question
1. GM foods are sprayed with more pesticides than
crops grown conventionally
2. Foods that have been genetically modified can
be labeled as USDA Organic
3. Foods that have been created through mutation breeding (mutagenesis) can be labeled Organic
4. All fresh produce contains genes that
have been altered by humans
5. Genetic modification of food crops alters fewer genes than conventional
breeding techniques
Self-assessed knowledge and 1
r = -.062, p = .315
Self-assessed knowledge and 2
r = .006, p = .918
Self-assessed knowledge and 3
r = .041, p = .502
Self-assessed knowledge and 4
r = .150, p = .015*
Self-assessed knowledge and 5
r = .072, p = .241
B. T-tests of trust levels based on whether or not respondents avoid GM foods
Two sample t-test
with equal variances
Scientists t = 9.21, p = .000
Environmentalists t = 5.96, p = .000
Farmers t = 8.80, p = .000
Government t = 10.95, p = .000
Biotechnology t = 9.14, p = .000
Does
not avoid Avoids
Target
Mean
Mean
Scientists
3.44
2.52
Environmentalists
3.18
2.55
Government
3.11
2.05
Farmers
3.02
2.18
Biotechnology
2.65
1.69
