Help with assignment

I’m stuck on a Psychology question and need an explanation.

By developing a narrative that highlights connections and progressions among the individual sources, the process of reviewing the literature serves as a tool to aid the researcher in identifying a problem or a research gap in a given field. In this assignment, you will conduct an abbreviated review of the literature related to behavioral health leadership theory and its applications.

General Requirements:
Use the following information to ensure successful completion of the assignment:

• This assignment uses a rubric. Please review the rubric prior to beginning the assignment to become familiar with the expectations for successful completion.
• Doctoral learners are required to use APA style for their writing assignments. The APA Style Guide is located in the Student Success Center.
• Refer to the Publication Manual of the American Psychological Association for specific guidelines related to doctoral level writing. The manual contains essential information on manuscript structure and content, clear and concise writing, and academic grammar and usage.
• This assignment requires that at least two additional scholarly research sources related to this topic and at least one in-text citation from each source be included.

Directions:
Write an abridged, narrative review of the literature (1,750-2,000 words) of behavioral health leadership theory and its applications. Use sources that are no more than three years old or those that are classical or seminal works. Include the following in your review:

1. A chronological narrative that summarizes, connects, and synthesizes at least five resources that address major theories and models in medical psychology and behavioral health medicine. Highlight similarities, differences, and progressions in thought across the sources and over time. (Benchmarks C9.1: Integrate the major theories and models of medical psychology and behavioral health medicine.)
2. A chronological narrative that summarizes, connects, and synthesizes at least five resources that address the application of theoretical concepts to behavioral health management. Highlight similarities, differences, and progressions in thought across the sources and over time. (Benchmarks C9.2: Examine the application of theoretical concepts to behavioral health management.)
3. A chronological narrative that summarizes, connects, and synthesizes at least five resources that address supervisory relationships, practices, and instruments common to the behavioral health setting. Highlight similarities, differences, and progressions in thought across the sources and over time. (Benchmarks C9.3: Analyze supervisory relationships, practices, and instruments common to the behavioral health setting.)
4. A summary of the key ideas that can be inferred from each set of sources when taken as a whole. What is compelling about these sources? What do these sources mean for the behavioral health consulting field?

Rubric:

A chronological narrative that summarizes, connects, and synthesizes at least five resources that address major theories and models in medical psychology and behavioral health medicine is thoroughly presented. Sources are scholarly current or seminal research..

A summary of the key ideas that can be inferred from each set of sources when taken as a whole is thoroughly presented. Sources are scholarly current or seminal research.

Synthesis of source information is present and is scholarly. Argument is clear and convincing, presenting a persuasive claim in a distinctive and compelling manner. All sources are authoritative.

Thesis and/or main claim are clear and comprehensive; the essence of the paper is contained within the thesis.

The document is correctly formatted. In-text citations and a reference page are complete and correct. The documentation of cited sources is free of error.