David Weisburd, Charlotte Gill, Block Randomized Trials at Places: Rethinking the Limitations of Small N Experiments, Journal of Quantitative Criminology, Vol. 30, No. 1 (March 2014), pp. 97-112 ...

A class of nonparametric procedures for testing the statistical identity of treatments in randomized block experiments is suggested and discussed. The suggested procedures are squarely based on ...

The Model degrees of freedom for a randomized complete block are (b-1)+ (t-1), where b= number of block levels and t= number of treatment levels. In this case, (3-1)+ (3-1)=4. Several simple ...

The following command shows the fitted model for the four blocks, where the assumption of no interaction forces the fitted values to constant distances apart, representing the assumed constant block ...

To illustrate how their method works, the researchers used data from a large-scale policing experiment in Medellín, Colombia. In the experiment, a different research team, led by Daniela Collazos of ...