Which of the following is NOT a primary source of intelligence?

The rationale behind identifying Psychological Intelligence (PSYINT) as not being a primary source of intelligence lies in the classification of intelligence types. Primary sources of intelligence are typically established categories recognized within the intelligence community for collecting specific forms of data and information.

Human Intelligence (HUMINT) involves gathering information through interpersonal contact and human sources, making it a fundamental source. Similarly, Signals Intelligence (SIGINT) focuses on collecting and analyzing electronic signals to intercept communications and data, which is critical for national security and military operations. Imagery Intelligence (IMINT) refers to the collection and analysis of imagery from satellites and reconnaissance, playing a vital role in intelligence analysis.

In contrast, Psychological Intelligence (PSYINT) does not fit into the established framework of primary intelligence sources. Although psychological assessment is important for understanding the mindset of individuals or groups in certain contexts, it does not constitute a primary method of intelligence gathering like HUMINT, SIGINT, or IMINT. Instead, psychometric evaluations or psychological assessments are often used in conjunction with primary intelligence sources to provide deeper insights, but they are not themselves classified as a primary intelligence source.