Please select four of the following concepts or theories.

Social changes in life-span development
Memory
Positive reinforcement, negative reinforcement and punishment
Issues related to gender and sexuality
Motivation and emotion
Personality
Health psychology, stress and coping strategies
Psychological Disorders and other Mental Health Issues
Concepts of interpersonal relationships
Following the link, click on to download the Student Sample paper. Use this as a template to format your paper correctly in APA per the 7th edition. 

https://apastyle.apa.org/style-grammar-guidelines/paper-format/sample-papers

The PDF has more explanation.

https://apastyle.apa.org/style-grammar-guidelines/paper-format/student-annotated.pdf

Do not use any source other than the book that will be attached and a U.S source.