Beware Of Popular Kids Bearing Gifts: A Framed Field Experiment - Jignan Chen, Daniel Houser, Natalia Montinari, And Marco Piovesan (Interdisciplinary Center For Economic Science, George Mason University) Page 23
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34Appendix
A.1. Experimental Procedures and Instruction.
Our experimental sessions have been conducted in Italian public primary schools.
Children attend the primary school from 6 to 11 and they are normally divided in 5
grades, grouped in class of approximately 15-25 children. The teacher was present for the
whole duration of the experimental session but we asked him/her not to intervene.
In each class, the experimental instructions were explained verbally to the children
following the script reproduced below. Since the task is trivial but can be difficult to
understand for some young children we repeated more than once the instructions and we
allowed each child to ask questions about the rules of the game (but not the purpose).
a. Dictator Game
Before the dictator game, both in public and private treatment, in order to get familiar
with the decision situation, children were asked to imagine having four rubber bands and
to indicate how many bands they would you like to share with another anonymous real
child participating to the experiment in another class or school. We ask each the child to
think about this situation in private and not to communicate with other children and then
fill a report sheet with the number of bands that they want to share. Once this training
stage was completed, children made a real decision. Children in public treatment were
informed that at the end of the activity their name and choice would have been written at
the blackboard. For children in the private treatment only the name but not their choice
was written. In each class the experiment has been conducted following the script below.
Script: Dictator Game.
Once in the class, the experimenter collects the consent form signed by the parents and
writes on the blackboard the names of the children who participate. After the training
stage was completed, the Dictator Game was introduced following the script below.
Script: Dictator Game
Ok, now you have another decision to make. This time all your decisions now will have
real consequences. Let me explain better. This time we will give you 4 silly bandz. Now ,
each of you can decide if he wants to share his silly bandz 4 with another boy or girl from
another class who will participate in the game later. Now, each of you will leave the
class, you will receive 4 silly bandz and in secret have to decide if he wants to share his
bracelets with this person and if he decides to divide must put the silly bandz who decides
to give the envelope. Each of you in fact have a bag like this.[The assistant shows the
envelope to children]. So if you want give any silly bandz to another child, just put it in
the envelope. Put the silly bandz that you want to keep for you in your pocket and do not
let them see by your classmates until the end of the activity. Once you have taken your
decision, when entering the class, you have to leave the envelop to the assistant. So,
!
21!
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