Sample interview questions: How do you address potential confounding factors in your research on education economics?
Sample answer:
Addressing Confounding Factors in Education Economics Research
1. Experimental Design and Randomization:
– Conduct randomized controlled trials (RCTs) to randomly assign participants to experimental and control groups, minimizing selection bias and confounding factors.
2. Propensity Score Matching:
– Match individuals in the treatment and control groups who have similar observable characteristics, reducing the potential impact of confounding factors.
3. Regression Discontinuity Design (RDD):
– Exploits a sharp discontinuity in treatment assignment based on a predetermined cutoff point, isolating the effect of the intervention from other factors.
4. Instrumental Variables (IV) Approach:
– Uses an instrumental variable that is correlated with the treatment but not with the outcome, to control for unobserved confounding factors.
5. Fixed Effects Models:
– Incorporates fixed effects for individuals, schools, or other entities to control for time-invariant confounding factors that may be correlated with the treatment.
6. Propensity Weig… Read full answer
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