The study aims to identify the extent of psychological assessment and behavior of students as a basis for an intervention of a school curriculum development plan program among the respondents. Mixed methods are utilized in the study which is a triangulation of Focus Group Discussion (FGD). On the other hand, convenience sampling is used in the selection of the sample size in the study. The study consisted of Two Hundred Fifty (250) psychology students from the different Higher Education Institutions in Metro Manila. It shows that extent of psychological assessment on the behavior of students manages and transforms difficulties that affect the persons’ success and performance and the person’s ability to face obstacles, problems, and situations in life opportunity and advantage, it shows that intelligent quotient determines the ability of the person to utilize his ability on logic, essentials in getting right, and make wise prediction, it shows that emotional quotient determines the assessment based on individual responses to a situation, it shows that spiritual quotient develops self-awareness in discovering and connecting true self-image aligns with the purpose of individual souls, it shows that creative quotient is designed to measure the baseline of creativity aptitude and capability of individual person, and it shows that adversity quotient determines how people can adapt and walk to overcome situation and hardships. Findings show that there is a significant agreement on the extent of psychological assessment and behavior of students as an intervention for school curriculum development plan program as observed among the respondents.