What is your target audience for this study? In other words, are you performing the study in order to aid individual consumer and small business users or medium/enterprise businesses in their protection of their Windows 10 based systems?
The reason I'm asking is because the answer for these is quite different, since Windows Defender and most other 3rd-party anti-malware products are only a small part of the security included in Windows 10. The following Microsoft Windows 10 security overview discusses many of these core features and includes a section about malware resistance.
https://technet.microsoft.com/en-us/library/mt601297%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396
How much of this is important depends upon your purpose for the study. Much of the deeper information about Windows Defender also isn't exposed by any of the links already provided and was instead discussed in blog and other Microsoft articles years ago, many related to the previous Windows 8 version and its predecessor Microsoft Security Essentials. Many of these articles are no longer available online, so the technical feature information is difficult to discover.
The visible controls in MSE/Defender have always been simple and so only hint at the highly technical capabilities hidden behind them. This is much different than the general tendency for most 3rd-party anti-malware products to display controls or market their products using a list of technical features. Though Defender contains many of these same technical abilities, they rarely expose or discuss them in consumer oriented literature, since it would only serve to confuse them.
Rob