Cognitive Biases in Clinical Decision-Making: Implications for Psychological Practice

Abstract

Background/Objectives: Clinical psychologists are routinely required to make complex decisions under uncertainty, often with incomplete information and within emotionally and institutionally demanding contexts. A substantial body of evidence from cognitive psychology demonstrates that these decisions are vulnerable to systematic distortions known as cognitive biases. Methods: Theoretical and empirical literature was reviewed to identify key distortions, including confirmation bias, availability heuristic, anchoring, overconfidence and the illusion of validity. A narrative synthesis approach was adopted, focusing on literature involving psychological professionals in applied contexts. Special attention is given to the cumulative dynamics of bias cascade and snowball effects, as well as the influence of contextual variables such as workload, cultural mismatch and documentation practices. Results: Different reasoning frameworks rational-analytic, intuitive-humanistic and hypothetico-deductive exhibit varying vulnerability to bias. Ethical and epistemological risks include compromised patient autonomy, unjust credibility judgments and institutional blind spots. Conclusions: Evidence-based mitigation strategies are highlighted, such as structured decision protocols, clinical examples to illustrate bias manifestations, metacognitive awareness training, collaborative frameworks and outcome-driven feedback.