In a second paragraph, you need to cite and summarize atleast one paper that gives you reason to believe that there might be an effect.
In a third paragraph, either cite and describe a second paper that supports your proposed effect, OR cite a paper that explains why you might not find an effect (or might find the opposite of the expected effect).
In a fourth paragraph, state the main question. Say how you are going to test your question (in the future tense). Briefly describe the participants, materials and the task they will do. Finally, state what you expect to happen and support it with reference to prior studies.
Materials.
Describe the stimulus materials. Put a print out of your materials
in an appendix, but describe them here: How many words/problems/lists etc.
will participants receive? Also describe the content, purpose, and the
source of the information if possible. Describe any differences in materials
between conditions.
Procedure.
Describe exactly what students will do from the moment they walk in
to the room. What instructions will they be given. What will they do. What
will be measured? How will it be measured (what are your dependent measures
-- reaction time, accuracy)? If the manipulation is in the method -- in
the task that students are asked to do -- describe the manipulation here
(give both sets of instructions). Describe how students will be assigned
to condition (randomize or block randomize).
Prediction.
Explain what your hypothesis is and how you will analyze your data
to test your hypothesis.