Most psychological concepts are latent constructs and generally require multiple items.

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Latent constructs in psychology are not directly observable but inferred through several indicators, thus requiring multiple items to measure them accurately. For example, anxiety is a latent construct that cannot be observed directly but can be inferred through various self-report items related to worry, nervousness, or fear. Similarly, intelligence, motivation, or personality traits are also measured through multiple items or scales to capture their complexity and variability.

Most Psychological Concepts Are Latent Constructs and Generally Require Multiple