Geez, I learn so much investor psychology here!

It's a way to make quick decisions without the extra discomfort of the inevitable ambiguity that comes with in-depth research...Yes, I studied psychology as an undergrad.)I haven't quite made a decision one way or the other about the product yet, but I'm not knocking it until I have more information, certainly more than one person's opinion.To be fair, the original poster did not say that Deal Dog would not, under any circumstances, help anyone else.

Probably, but a low appraisal will generally have a psychological influence on the buyer, and will tend to make them not want to purchase at the agreed upon price (they feel they are overpaying), even if they have the means to do so.The nice thing about most cash buyers is that they won't have an appraisal, so that's one less concern...

There is the psychological effect that one person has to another telling them the glass is almost empty as opposed to saying we now have more room for growth and prosperity.

But the psychological lesson I learned was it's easier to be mad at someone else and blame your troubles on them, then it is to face the truth about one's own shortcomings. 

Not only investing books, but also psychology, philosophy and any other self improvement books- Listen to the BiggerPockets podcasts- Attend your local real estate investment meetupsDo all of this consistently for a couple years and I guarantee you will be well prepared to start your investment journey.

I have  background in psychology but I've always been interested in investing since the time of Carlton sheets.

Maybe even a Criminologist or a Psychological profiler?

Seller psychology.

I also enjoy hiking, swimming, playing nerdy board games, and anything psychology related.Oh, yea...