Complex sentence: Stephen Murray studied homosexual occupations in Mesoamerica by analyzing a man's employer, and studied if a man's occupation can accurately determine his personality and whether they identified as a "pasivo" (bottom) or "activo" (top).
Split into simpler sentences: Stephen Murray studied homosexual occupations in Mesoamerica by analyzing a man's employer. The study focused on whether a man's occupation, along with a man's personality, can accurately determine a man's sexual preference--a "pasivo" (bottom) or "activo" (top).