Self-efficacy: Toward a unifying theory of behavioral change.¶
Why this mattered¶
Bandura’s 1977 paper mattered because it shifted behavior-change theory away from treating action chiefly as a direct product of reinforcement histories, drives, or outcome expectations. Its central claim was that people’s beliefs about their own capacity to execute a course of action, “self-efficacy,” help determine whether they attempt a behavior, how much effort they invest, how long they persist under difficulty, and how they respond emotionally to threat or failure. That made perceived agency a causal variable rather than a vague background trait.
The paper also unified findings that had previously sat in separate domains: phobia treatment, avoidance behavior, coping, persistence, and therapeutic change. Bandura argued that successful performance accomplishments, vicarious experience, verbal persuasion, and physiological states could all alter efficacy expectations, and that these expectations helped explain why some interventions generalized beyond the immediate treatment setting while others did not. After this, researchers could measure a person’s task-specific confidence and use it to predict and design behavior change, rather than relying only on external contingencies or broad personality constructs.
Its influence is visible across later breakthroughs in social cognitive theory, health psychology, education, clinical intervention, and behavior-change models. Self-efficacy became a standard mechanism for explaining why patients adhere to treatment, students persist in learning, people adopt preventive health behaviors, and individuals recover from setbacks. The paradigm shift was not simply that confidence matters; it was that perceived capability could be specified, measured, experimentally modified, and used as a bridge between cognition, motivation, emotion, and action.
Abstract¶
The number of thalassemia patients in Indonesia is predicted to rise every year. This genetic disease could cause psychological impact and large expenses for patients, families, caretakers, and the government. This study aimed to analyze the correlation between perceived barriers (PB) and consideration of future consequences (CFC), and also their interaction with behavioral intention (BI) to undergo a thalassemia screening as part of preventive health behavior (PHB). Participants were 411 young adults, aged 18 to 25 years old (M = 20.47). The measurements used in the study were adapted versions of PHB Scale, the CFC-14 Scale, and BI Scale. Main results from PROCESS regression analysis showed, (1) a negative and significant influence from the PB to BI (b1 = -0.0089; p < 0.05), (2) CFC had insignificant influence toward BI (b2 = 0.0096; p > 0.05), (3) the interactions of PB and CFC had insignificant influence toward BI (b3 = -0.0005; p > 0.05). Self-efficacy, as controlled variable, had significant correlation with BI and became strong predictor toward the intention to enact PHB. This study concluded that barriers remain as dominant factor that determines someone's PHB. The more elaborate patient's knowledge, the more they see barriers as challenges, therefore the higher their efficacy to enact PHB.
Related¶
- enables → Fostering implementation of health services research findings into practice: a consolidated framework for advancing implementation science — Bandura's self-efficacy construct links to CFIR through the claim that confidence in performing a behavior affects whether evidence-based practices are adopted.
- enables → The theory of planned behavior — Bandura's 1977 self-efficacy theory directly shaped Ajzen's perceived behavioral control as a determinant of intentions and behavior.
- cite ← Fostering implementation of health services research findings into practice: a consolidated framework for advancing implementation science — CFIR cites Bandura's self-efficacy theory as the behavioral-change construct underlying individuals' confidence to implement evidence-based practices.
- cite ← The theory of planned behavior — Ajzen links perceived behavioral control to Bandura's claim that self-efficacy expectations shape behavioral change.