Psychology, like other school subjects, does not need to be capitalized. However, I am not sure if it is incorrect to capitalize it. I have a professor of psychology who in fact does this every time he uses the word.
It should be capitalized when it is used in place of the person's name. In other words, it should be capitalized when it is not preceded by a possessive pronoun.
Yes
Each item should only be capitalized if they are proper nouns, titles etc. If it wouldn't normally have a capital letter then don't capitalize it in a list.
Both words should be capitalized like so: Discovery Channel.
Psychoanalysis, Clinical Psychology, Counseling Psychology, Child Psychology, Neuro Psychology, Psychiatry.
No they shouldn't be capitalized.
Yes, the word "Psychology" should be capitalized when used as the name of the field of study or as part of a proper noun, such as the title of a course or the name of a department.
If you're talking about psychology, then no. If you're talking about an identification of some kind, yes. ID is an abbreviation.
Have should be capitalized if it is the beginning of a sentence. Summer should not be capitalized.
It should only be capitalized if it forms part of a title.
Yes it should always be capitalized.
Yes it should be capitalized.
As an abbreviation it should be capitalized.
No it should not be capitalized.
The first 'c' should be capitalized.
Yes it should be capitalized.
Yes, it should be capitalized.