Actually, for research like this to be valid it must be without bias, as much as possible.  One may make the case that no matter who wrote it because it is in the canon it is authoritative. Others disagree.  Totally ignoring   something found in scripture does not give due respect to the whole of revelation. The real issue is whether these epistles are a compendium of writings, some actually by Paul, others written and attributed to Paul. In that culture no deception was intended. 
    More important is understanding the spiritual intent of what is found in the Bible.. Any blind adherence to the letter is a form of fundamentalism which while found in any major religion can inhibit a mature spiritual life and a genuine encounter with God who, thought using human agents to communicate still speaks in the recesses of the heart in the "still small voice".