Reviewers use the abstract to understand the nature and scope of your proposed study. Carefully read instructions regarding number of pages, font size, margins, headers, footers and other requirements. Failure to comply with PHS regulations could result in the return of the application unread. Broad goals should lead to long term goals. Objectives are measurable and attainable.
Results are generalizable and to what populations.
State of current knowledge about the proposed work and your understanding of recent research findings. Gaps in knowledge. Contribution to knowledge. List prior research including pilot studies and recent relevant publications. Defend choice of study design.