Final answer:
The controversy arose due to psychologists' involvement in inhumane military interrogations, but it was resolved through the adoption of ethics guidelines and stricter oversight measures.
Step-by-step explanation:
The controversy over psychologists' involvement in inhumane military interrogations arose when it was revealed that some psychologists were assisting in the design of physical and mental techniques to interrogate prisoners of war. This raised ethical concerns as these techniques often involved torture or other inhumane practices. The controversy was resolved through several actions, including the adoption of professional ethics guidelines by organizations such as the American Psychological Association (APA) and the implementation of stricter oversight and accountability measures.