What symptoms might prompt further investigation during a psychological assessment?

The presence of signs of flat affect is an important indicator that may warrant further investigation during a psychological assessment. Flat affect refers to a lack of emotional expression, where the individual displays a diminished range of emotional responses. This symptom can be associated with various mental health conditions, including depression, schizophrenia, or other mood disorders. It may suggest difficulties in emotional regulation or social engagement, which are critical areas to evaluate for a complete understanding of the individual's mental health status.

Considering the other options, active listening skills indicate a positive engagement in communication and are typically seen as a strength rather than a symptom of concern. A high energy level could be normal or even a sign of enthusiasm and does not necessarily indicate any underlying psychological issue without other accompanying symptoms. Similarly, positive social interactions typically reflect healthy functioning and are not symptoms that would prompt investigation. Thus, flat affect stands out as a noteworthy symptom that requires further exploration.