Answer:
The elements Mandy needs to include in the outline for her research paper are:
Thesis statement
Paper title
Major points
Step-by-step explanation:
An outline is an instrument that contains the elements of a topic. She is working on research. We don't know what it is about. However, knowing that it has to contain the whole structure of the topic we need to consider the following elements: Thesis statement, because we require to know what is the topic, the justification, the research question, and the posture we are going to take to answer the question. The paper title, because we need to create one that will show the topic and the phenomenon we are going to study. The major points of the paper, because to explain her thesis she needs to develop an explanation with enough evidence to answer the question.