10.
This question is based on the mandatory article by Goldstein, Cialdini, & Griskevicius, V. (2008), \"A room with a viewpoint: Using social norms to motivate environmental conservation in hotels\":
The authors conducted two field experiments. Based on the results of experiment 2, the authors found all of the following results EXCEPT:
A) The descriptive norm condition \'gender identity\' yielded a significantly higher towel reuse rate than the descriptive norm condition \'same room identity\'.
B) All four \'descriptive norm\' messages combined yielded a significantly higher towel reuse rate than the \'standard environmental message\'.
C) The descriptive norm condition \'same room identity\' yielded a significantly higher towel reuse rate than the descriptive norm condition \'citizen identity\'.
D) The descriptive norm conditions \'citizen identity\' and \'guest identity\' did not differ from one another.
Answer: A) The descriptive norm condition \'gender identity\' yielded a significantly higher towel reuse rate than the descriptive norm condition \'same room identity\'.