Good. Stay like that.
Sounds like a non-problem to me. In the middle ages in Europe clerics and students had to learn the characteristics of cherubim and seraphim. Even though neither exists or existed. Pointless waste of human talent.
Same applies here. The rules for judging trustworthiness are the same for all.
http://www.workingoutwhatworks.com/en-GB/Magazine/2015/1/Trustworthiness_of_research
And if you do not separate things out there is no need to mix!
http://eprints.bham.ac.uk/526/
But most importantly, they have nothing at all to do with research designs.