The primary dependent variable is the number of times that participants select Republicans Win Seats or Republicans Lose seats (possible range: 0-12).
We will run a pooled-variances, independent-samples *t*-test as our replication model. This will be done with the following code:
T-TEST GROUPS=confirmatory(0 1)
/MISSING=ANALYSIS
/VARIABLES=finalpredict
/CRITERIA=CI(.95).
As a supplementary analysis, as the data represents count data, we will test the model using a *poisson* regression using the following code:
poisson finalpredict i.confirmatory, vce(robust)