Prove, as best you can, that DID exists. Use your best evidence and strongest research (personal anecdotes and experiences don't count as evidence)
Physical Differences Between Alters
http://www.ncbi.nlm.nih.gov/pubmed/8888853http://www.nytimes.com/1988/06/28/science/probing-the-enigma-of-multiple-personality.html?pagewanted=all&src=pmhttp://www.ncbi.nlm.nih.gov/pubmed/2333357http://www.psyn-journal.com/article/S0925-4927(07)00003-0/abstract
Neurological Differences Between Alters
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0039279http://www.mendeley.com/research/functional-magnetic-resonance-imaging-personality-switches-woman-dissociative-identity-disorder/http://www.ncbi.nlm.nih.gov/pubmed/2225470
Structural Brain Differences in Those with DID
http://ajp.psychiatryonline.org/article.aspx?articleid=96513
Arguments Against the Sociocognitive Model of DID
http://www.copingwithdissociation.com/Dell_2006_ANewModelofDID1.pdfhttp://www.sciencedirect.com/science/article/pii/S0272735899000732http://psycnet.apa.org/journals/pro/30/4/341/http://www.cme.psychiatryonline.org/data/Journals/AJP/3677/832.pdf
Places in Which DID has been Studied
http://www.sciencedirect.com/science/article/pii/S0010440X99901207 (Turkey)http://ajp.psychiatryonline.org/article.aspx?articleid=174176 (the Netherlands)http://scielo.isciii.es/scielo.php?script=sci_arttext&pid=S0213-61632006000300005 (Northern Ireland)http://journals.lww.com/jonmd/Abstract/2001/04000/Prevalence_of_Dissociative_Disorders_among.7.aspx (Germany)http://informahealthcare.com/doi/abs/10.3109/00048679809073868 (Australia)
India (Chiku et al., 1989) (Chaturvedi et al., 2009) (Gupta, 2005), Switzerland (Modestin, 1992), Turkey (Tukun et a.l, 1998), the Netherlands (Draijer et al., 1993) (Van der Hart et al., 2008), China (Xiao et al., 2006), the United Kingdom (Silberman et al., 1985) (Shelley, 2006) (Putnam et al., 1995), New Zealand (Barker-Collo, 2008), Norway (Knudsen et al., 1995), Israel (Somer et al., 2006) (Ginzburg et al., 2010), and Canada (Ross et al., 1991) (Horen et al., 1995). Dissociative symptoms have also been recorded in Sweden (Svedin, 2006), though Dissociative Identity Disorder was mentioned, not specified.
Here’s research that specifically compares rates of DID in Canada and China. http://lib.bioinfo.pl/pmid:19042308 The idea is that since the Chinese public has very little information on DID, they shouldn’t have as many people who fit the criteria and can be diagnosed with the disorder if DID follows the sociocognitive model.
http://psycnet.apa.org/psycinfo/1997-07342-006http://www.sciencedirect.com/science/article/pii/S0890856709648218http://www.sciencedirect.com/science/article/pii/014521349390006Q
Evidence for Tenant of DID: Repressed Memories (Confirmation of Abuse)
http://psycnet.apa.org/journals/pro/30/4/341/http://journals.lww.com/jonmd/Abstract/1994/08000/Confirmation-of-Childhood-Abuse-in-Child-and.7.aspxhttp://blogs.brown.edu/recoveredmemory/http://news.yahoo.com/siblings-discover-dads-scout-abuse-remember-own-153124952.htmlhttp://pages.uoregon.edu/dynamic/jjf/whatabout.html
As well, I’d like to ask that you search for “One Brains, Two Selves.” The PDF can’t be linked to, but the study is very much so a worthwhile read.
If there’s anything in particular that you find objectionable about DID, please, do speak up. Otherwise, I’ll assume that you’ve either come to view DID as valid or harbour a bias against the disorder (which, as we all know, would be terribly unscientific of you; emotions and feelings, after all, don’t count as evidence).