His methodologies are antiquated and he has not updated the text to conform to today's market.

It is not unsupported if it can be repeatedly demonstrated how their methodologies are spurious and their outcomes are empirically false.

If that is your methodology, God Bless You.

Policing in 2015 has become a methodology of public relations, driven by public opinion, with liability avoidance as it's #1 priority. 

It includes, among other things, a comprehensive map of the Cleveland area, grading each area from A+ down to F, using a consistent, objective and transparent methodology using publicly available data, and overviews of some of the areas that are most popular with investors.

Regarding some of the questions, this is Freddie Mac's description of its methodology which does seem as a reliable means of having some idea of home price movement: "The Freddie Mac House Price Index (FMHPISM) provides a measure of typical price inflation for houses within the U.S. ...Series are available at three levels of geographical aggregation: Metropolitan Statistical Area (MSA), state, and national.

Dave's methodology is great.  

This "study" made a lot of headlines recently, for example, but if you actually look at the research methodology, it is extremely flawed.

Foldvary predicted the real estate crash in 2006 using this same methodology. 

Btw, when those investors with millions of dollars realize that you're deciding how to invest their money based on an Internet post, I'm thinking they may have second thoughts...Again, I apologize for the sarcasm, but if you honestly believe there's a simple get-rich-quick methodology to real estate investing, you're in the wrong place...