I did some work on this theme for my psychology finals, so I am pretty familiar with what you need. Also, I am very interested in psychology, so this will be interesting for me to do. I guarantee that it will not have any grammar mistakes, and since this is my first Freelancer job, I will definetly try my best. I plan on doing a lot of research before writing anything, because I think that it is necessary for me to do so, since I want to deliver a perfect job for you. After doing the research, I will double check my work, just to make sure that the things I wrote are legitimate, and that there are no spelling mistakes. I hope that you take me for this job, and I am waiting to hear from you.