Psychology's arrested development as language differences.
“Disagreement is not the conflict between one who says white and another who says black. It is the conflict between one who says white and another who also says white but does not understand the same thing by it.” – Jacques Ranciére
Psychoanalysis, Behaviorism, Cognitivism, Biopsychology, Neuroscience and any other psychological approaches will come to see that they are all essentially speaking different ‘languages’ about the same thing, and that when they are used together in a therapeutic setting, they will have most efficacy. I would even include Buddhism and Taoism here, though they are drastically different (see: wiser) schools of thought in that their understanding of the mind is more experiential than conceptual.
I believe restricting oneself to one school of thought is similar to stubbornly remaining monolingual in a country that speaks over 5 official languages.
This is perhaps why we are yet to find a common ground 'paradigm’ in Psychology, which of course only denies us the status of Science even further (not that we should be seeking it intentionally). But those who immerse themselves in Psychology will see the significant conceptual overly.
All Psychology needs now is a 'translator’, well versed in two or more of these schools of thought. We don’t need to keep racing against each other. We need to welcome integration. Like Neuropsychoanalysis!