How to write statement of purpose for Walden University?

I’m final year undergraduate student of Psychology and wish to get admission for pursuing doctoral research at Walden University. My interest lies in advanced research in the discipline of psychopathology. I have already begun searching for the Walden uni culture and processes. In one of the uni blogs I read, that one must start writing statement of purpose and obtain recommendation letters much before. But I don’t know how to write statement of purpose that can be easily approved by Walden? I studied many sops of other universities online but not able to get one of the walden. Is here anyone from walden that can share his/her sop so that I shall begin writing it??

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