R. baker, j. kalka, v. aleven, l. rossi, s. gowda, a. wagner, g. kusbit, m. wixon, a. salvi, j. ocumpaugh. towards sensor-free affect detection in cognitive tutor algebra. proceedings of the 5th international conference on educational data mining, 01 2012:

Which examples are relevant sources for students to use in research? check all that apply. a journal entry written by a professor who is considered an expert a report written by an independent government source a presentation by a company that includes paid information a document published by a renowned organization a scientific paper put out by a non-profit organization a blog whose author tries to sell a product or service