Field experiments

Question 1

Field experiments

Answer 1

Exogeneous intervention, controlled by the researcher
Random assignment by the researcher to treatment and control group
The researcher controls the intervention but not the environment

Question 2

Non-compliance

Answer 2

Occurs when subjects who were assigned to receive the treatment go untreated or when subjects assigned to the control group are treated inadvertently.

Question 3

Two-sided non-compliance

Answer 3

Noncompliance in both groups, i.e. that both some in the treatment group do not get get the treatment; but also that some in the control group receives the treatment.

Question 4

One-sided non-compliance

Answer 4

Only noncompliance for one of the assigned groups, typically that the individuals in the treatment do not get treated

Question 5

Never-takers

Answer 5

Untreated subjects regardless of whether they are assigned to treatment or control

Question 6

Compliers

Answer 6

Receive treatment when assigned to the treatment group and do not receive it when assigned control.

Question 7

Encouragement design

Answer 7

A design that invites subjects in the assigned treatment group to participate in a program offered by the researchers.

Question 8

Non-interference assumption

Answer 8

The potential outcome for each individual are unaffected by the assignment of any other individual

Question 9

Exclusion restriction

Answer 9

A subjects treatment assignment does not matter once we account for whether a subject is actually treated

Question 10

Hawthorne-effect

Answer 10

Subjects modifying their behavior as a result that they know they are being studied