corrections
Paper 1: the introduction provides a literature review on the topic. It should be a summary of past research that has been conducted on the topic. I don't see any references to journals from psychological literature. The references are about methodology, which would belong in the methods section, but not in the introduction to the topic.
Paper 2: this assignment was not done correctly. For this course you have to design a quantitative study. You said you were going to do a qualitative study, but then you described quantitative techniques such as correlations and statistics. There should have been three sections to this methods section, the participants, materials and procedure. There should have been instructions to the participants about what they would do. I don't see the modified informed consent form. I don't see any appendices with possible research questions. Your references are not in correct APA format. Please see my comments and let me know if you have any questions.
Paper 3: this assignment was not done correctly. You are supposed to be writing about your presumed results, not discuss what you found. This is a proposal for research. There should be tables and figures and a discussion about what type of inferential statistics would be used to analyze the data. What you've turned in seems to be a discussion section, not a results section.