| Field | Before | After |
|---|---|---|
| Field Trial Status | Before on_going | After completed |
| Field Abstract | Before This document describes the analysis plan for a randomized experiment examining the psychological effects of poverty on cognitive function. We will recruit 506 respondents from Amazon Mechanical Turk and expose our treatment group to a prime that triggers feelings of poverty (Mani et al., 2013). Then, participants complete ten Raven progressive matrices and 75 items of a Stroop task. The design of the study is a replication of the study by (Mani et al., 2013). This plan outlines the design of the experiments, the outcomes of interest, the econometric approach and the dimensions of heterogeneity we intend to explore. | After This document describes the analysis plan for a randomized experiment examining the psychological effects of poverty on cognitive function. We will recruit 1012 respondents from Amazon Mechanical Turk and expose our treatment group to a prime that triggers feelings of poverty (Mani et al., 2013). Then, participants complete ten Raven progressive matrices and 75 items of a Stroop task. The design of the study is a replication of the study by (Mani et al., 2013). This plan outlines the design of the experiments, the outcomes of interest, the econometric approach and the dimensions of heterogeneity we intend to explore. |
| Field Last Published | Before August 10, 2015 10:53 AM | After August 13, 2015 09:53 AM |
| Field Planned Number of Clusters | Before 506 respondents on Amazon Mechanical Turk. | After 1012 respondents on Amazon Mechanical Turk. |
| Field Planned Number of Observations | Before 506 respondents on Amazon Mechanical Turk. | After 1012 respondents on Amazon Mechanical Turk. |
| Field Sample size (or number of clusters) by treatment arms | Before 253 treatment individuals; 253 control individuals. | After 506 treatment individuals; 506 control individuals. |
| Field Power calculation: Minimum Detectable Effect Size for Main Outcomes | Before The chosen sample size of 506 participants for the experiment ensures that we can detect an effect size of 0.25 at a significance level of 0.05 with a power of 0.8. Given that the effect sizes reported by Mani et al. (2013) are between 0.8 of a standard deviation and 1 standard deviation, we can be confident that our sample is sufficiently large to provide us with sufficient statistical power to detect effects. | After The chosen sample size of 1012 participants for the experiment ensures that we can detect an effect size of about 0.18 at a significance level of 0.05 with a power of about 0.8. Given that the effect sizes reported by Mani et al. (2013) are between 0.8 of a standard deviation and 1 standard deviation, we can be confident that our sample is sufficiently large to provide us with sufficient statistical power to detect effects. |
| Field | Before | After |
|---|---|---|
| Field Document | Before |
After
PovertyCogFunction_PAP.pdf
MD5:
3bf602ea36f4f86ac1f41160fcbb6753
SHA1:
4f5926d3b824f1174b74815c218388aa24951366
|
| Field Title | Before | After Poverty and Cognitive Function PAP |
| Field | Before | After |
|---|---|---|
| Field Document | Before |
After
PovertyCogFunction_PAP.pdf
MD5:
30856ab06a5b7e9305d9ff4f72cb649a
SHA1:
615defa29962c94e1dc7b3f904da966f5bf69b3c
|
| Field Title | Before | After Poverty and Cognitive Function Revised |