How Radio Jay Allen tests radios?

[radiojayallen.com] In know... He does it more of the 'layman's-terms' way of doing it, where we want actual spec's, like Usable Sensitivity, (In uV.), Image Rejection, Adjacent Channel Rejection, AGC thresholds for AM, IF bandwidths, Audio FREQ responses, Audio Amp Power, etc. Then again, I guess you need what Radio Jay does, since the preceding spec's that I've mentioned, if you were to ask the average, non-tech, person out there for these, they would look at you like you've had 3 heads. (And, I think that most of us can relate to that. Right???)