A dataset on the impact of an information leaflet about coffee production on students' awareness about environmental issues collected at Bulgarian highschools and universities in the year 2015.
coffeeleafletA data frame with 522 rows and 48 variables:
school grade
1=male, 0=female
age in years
month of birth
dummy for Bulgarian nationality
dummy for Bulgarian mother tongue
mother's age in years
mother's education (1=lower secondary or less, 2=upper secondary, 3=higher)
mother's profession (1=manager, 2=specialist, 3=worker, 4=self-employed,5=not working,6=retired,7=other)
father's age in years
father's education (1=lower secondary or less, 2=upper secondary, 3=higher)
father's profession (1=manager, 2=specialist, 3=worker, 4=self-employed,5=not working,6=retired,7=other)
material situation of the family (1=very bad,...,5=very good)
dummy for living with both parents
dummy for living with mother only
dummy for living with father only
dummy for living with neither mother nor father
number of older siblings
numer of younger siblings
school dummy (for highschool with maths specialization)
school dummy
school dummy
school dummy
school dummy (for highschool in city of Varna)
school dummy (for Spanish highschool)
school dummy (for technical university)
school dummy (for highschool in city of Vidin)
school dummy (for university)
dummy for the capital city of Sofia
dummy for the city of Varna
dummy for the city of Vidin
treatment (1=leaflet on environmental impact of coffee growing, 0=control group)
drinks coffee (1=never, 2=not more than 1 time per week,3=several times per week, 4=1 time per day, 5=several times per day)
outcome: guess how many cups of coffee per capita are consumed in Bulgaria per year
outcome: deviation of guess from true coffee consumption per capita and year in Bulgaria
outcome: assess the importance of coffee for world economy (1=not at all important,..., 5=very important)
assess the importance of coffee as a source of income for people in Africa and Latin America (1=not at all important,..., 5=very important)
outcome: awareness of waste production due to coffee production (1=not aware,..., 5=fully aware)
outcome: awareness of pesticide use due to coffee production (1=not aware,..., 5=fully aware)
outcome: awareness of deforestation due to coffee production (1=not aware,..., 5=fully aware)
outcome: awareness of waste water due to coffee production (1=not aware,..., 5=fully aware)
outcome: awareness of biodiversity loss due to coffee production (1=not aware,..., 5=fully aware)
outcome: awareness of unfair working conditions due to coffee production (1=not aware,..., 5=fully aware)
outcome: can coffee waste be reused purposefully (1=no, 2=maybe, 3=yes)
outcome: can coffee waste be reused as soil (1=no, 2=maybe, 3=yes)
importance of price when buying coffee (1=not important at all,..., 5=very important, 6=I don't drink coffee)
importance of pleasure or taste when buying coffee (1=not important at all,..., 5=very important, 6=I don't drink coffee)
importance of environmental or social impact when buying coffee (1=not important at all,..., 5=very important, 6=I don't drink coffee)
Faldzhiyskiy, S. (Ecosystem Europe, Bulgaria) and Huber, M. (University of Fribourg): "The impact of an information leaflet about coffee production on students' awareness about environmental issues".
if (FALSE) {
data(coffeeleaflet)
attach(coffeeleaflet)
data=na.omit(cbind(awarewaste,treatment,grade,sex,age))
# effect of information leaflet (treatment) on awareness of waste production
treatweight(y=data[,1],d=data[,2],x=data[,3:5],boot=199)}
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