The advice on this site is general. Always check the specific requirements of your faculty or department. Ask if they can provide you with dissertation writing guidelines. To see examples of past dissertations from Solent University students, please visit the archive below.
There are almost certainly hundreds (at least!) of forums on the internet dedicated to writing dissertations on various different subjects, from English to maths to history. Students of all different topics writing at all sorts of different levels go online and connect with other pupils in order to get advice and help in their studies. You can post requests for one or more of these forums explaining that you are looking for examples of dissertations written in the APA style and wait for someone to send their answer. They may well send you their own work or samples that they have sourced from elsewhere, both of which are fine.
Examples of past dissertations - University College London
As a broke college student it's nice to find help that you don't have to pay for and if you are having problems writing your dissertation free examples are a great way to help yourself out. Examples of works like dissertations can help you figure out how to write something like a dissertation. Examples of dissertations help graduate students see other topics that have been done in their field of study and you can narrow down all the topics that have been done so you can find an original topic of your own.