What are two similarities between Hancock and Yerke/Gould?
They're both Quasi Experiments
-Yerke/Gould = Differing ethnicities in sample etc military recruits
-Hancock et al = Whether participants were psychopaths or non-psychopaths
Looked at psychological constructs
-Yerkes/Gould = Measured intelligences of recruits
-Hancock = Measured participants psychopathy