As I was reading this article, I was pleased (both as a dog-lover and a future research scientist) that the study supports valid, measurable personality traits in dogs with statistical significance in each phase of the study. Personally, however, one of the most interesting aspects of this study is the actual implementation and explanation of validity techniques that have been discussed in class. It’s clear from this article that assessing measurement validity is quite an art, and the careful use of statistical correlations can really serve a great purpose. Based on my limited knowledge, I agreed with the authors’ methods and conclusions, and I find their proposed future directions of study to be legitimately broad. Once a test has been deemed valid, many doors for future research are opened.