Which of the following statements is true regarding trait constructs?

The statement that only trait constructs should demonstrate temporal stability is true because one of the defining characteristics of traits is their consistency over time. Traits are understood to be stable aspects of personality that influence behavior, thoughts, and feelings across different situations and contexts. This temporal stability is crucial for traits as it allows psychologists to make reliable predictions about an individual's behavior in various circumstances.

Trait constructs play a vital role in psychological assessments, as they help in understanding an individual's characteristics and tendencies. In contrast, state constructs are expected to vary more frequently based on situational factors and external influences, thus demonstrating less temporal stability. The distinction between traits and states is foundational in personality psychology and informs how different psychological constructs are assessed and utilized in clinical settings.