The conclusion says what has been achieved, including notes of any limitations and any questions that have not been resolved. While students might draw conclusions throughout the essay based on their findings, it is important that there is a final, summative conclusion at the end. This conclusion(s) must relate to the research question posed.
The student should also ensure that there is an evaluation of the work presented. Consider how effectively the resaerch question has been answered. Are the sources of high enough quality? Has enough data been collected? Are there gaps in knowledge? How could the work be improved if it was done again? What further questions come from your research and how might they be answered?