It would be impossible to publish research in any respectable peer-reviewed psychology journal that was not up to this high standard with concomitant rigorous statistical analyses. These are the standards in psychology. When someone comes up with a new theory in psychology or any other science, for that theory to be of any use, it has to be able to make predictions and those predictions have to be verifiable. If there is no way to disprove a theory, it can explain everything that happens, yet it doesn't predict anything specific that can be tested, it is considered a poor theory.
While there have been countless books, audiobooks, articles, television shows, and of course, blog posts, on the topic of success in life, most people still feel lost. There’s a day-to-day struggle that many simply can’t rise above, suffocating in a sea of despair, hopelessness, and lost dreams. But, there must be a way. Surely, if others can do it, we can do it too, right?