Difference between revisions of "Randomized Control Trials"

Jump to: navigation, search
Line 8: Line 8:
=== Individual-level RCTs ===
=== Individual-level RCTs ===
Individual-level RCTs are impact evaluation design where the outcomes are measured on an individual basis. Randomization for individual-level RCTs are also done on an individual(per participant) level.  
Individual-level RCTs are impact evaluation design where the outcomes are measured on an individual basis. Randomization for individual-level RCTs are also done on an individual(per participant) level.  
==== Examples of individual RCTs in the DIME Portfolio ====


=== Clustered RCTs ===
=== Clustered RCTs ===
Clustered RCTs are a type of RCTs where randomization and outcome measurement are done on the basis of a group i.e. cohort, villages, etc.
Clustered RCTs are a type of RCT in which randomization and outcome measurement are done on the basis of a group i.e. cohort, villages, etc.
==== Examples of clustered RCTs in the DIME Portfolio ====
 
=== Randomized Phase-In ===
Roll-out of the intervention is randomized. This is typically done at the cluster-level. For example, an intervention is intended to treat 100 villages. 50 villages are randomly selected to receive interventions in year 1, and 50 villages are selected to receive interventions in year 2 (and therefore serve as a control group in year 1). A primary advantage of the randomized phase-in is that it is easily applied to project implementation schedules (as roll-outs typically happen over multiple years). A primary disadvantage is that once the intervention is fully rolled-out, there is no remaining control group, and thus no way to measure long-run effects.


== Back to Parent ==
== Back to Parent ==

Revision as of 22:09, 2 March 2017

NOTE: this article is only a stub. Please add content!

Randomized Control Trials (RCTs) are considered the 'gold standard' for impact evaluation.

RCT-related Topics

Individual-level RCTs

Individual-level RCTs are impact evaluation design where the outcomes are measured on an individual basis. Randomization for individual-level RCTs are also done on an individual(per participant) level.

Clustered RCTs

Clustered RCTs are a type of RCT in which randomization and outcome measurement are done on the basis of a group i.e. cohort, villages, etc.

Randomized Phase-In

Roll-out of the intervention is randomized. This is typically done at the cluster-level. For example, an intervention is intended to treat 100 villages. 50 villages are randomly selected to receive interventions in year 1, and 50 villages are selected to receive interventions in year 2 (and therefore serve as a control group in year 1). A primary advantage of the randomized phase-in is that it is easily applied to project implementation schedules (as roll-outs typically happen over multiple years). A primary disadvantage is that once the intervention is fully rolled-out, there is no remaining control group, and thus no way to measure long-run effects.

Back to Parent

This article is part of the topic Impact Evaluation Design

Additional Resources

Wiki Links

External links