In a recent article titled 'Why Smart People Still Believe These 5 Myths,' published on Psychology Today, psychologist Brock Hoffman explores the cognitive traps that even intelligent individuals fall into, challenging widely held beliefs about motivation, passion, and learning. The piece serves as a companion to his previous work on popular psychology misconceptions, offering a deep dive into how rational thinking differs from raw intelligence and why evidence-based reasoning is often overridden by cultural conditioning and herd mentality. Hoffman begins by highlighting the ubiquity of seasonal myths, using examples such as the belief that children melt down from candy cane consumption or that body heat primarily escapes from the head. He cites controlled trials showing that sugar does not cause hyperactivity, the head accounts for only about 10 percent of body heat loss, and poinsettias are not poisonous. These examples illustrate that even seemingly obvious truths can be scientifically unfounded, setting the stage for a discussion on more complex, consequential myths affecting performance and decision-making. [1]
The author outlines why smart people cling to false beliefs, identifying factors such as personal experience, reluctance to examine evidence, and the comfort of herd mentality. He distinguishes between beliefs that science can refute and those that are subjective, such as moral or financial decisions, noting that the latter fall outside the scope of empirical debunking. This distinction is crucial for understanding the limits of scientific intervention in deeply held convictions. [1]
The first major myth addressed is the idea that rewards inherently undermine intrinsic motivation, often referred to as the 'overjustification effect.' While generations of parents and educators have been taught that paying a child to read ruins their love for books, Hoffman presents a 40-year meta-analysis by Cerasoli et al. (2014) that contradicts this notion. The research reveals that intrinsic motivation and extrinsic rewards jointly predict performance, with internal drive correlating with work quality and incentives correlating with work quantity. The brain does not neatly separate these motivations; rather, rewards covertly shape choices, making the question not whether to use them, but how to use them productively. [1]
The second myth scrutinized is the popular advice to 'follow your passion.' Hoffman argues that this mantra, common in commencement speeches, suggests passion is a pre-existing treasure to be found. However, research by O'Keefe et al. (2018) indicates that viewing interests as fixed and discoverable can backfire, leading to decreased curiosity and faster abandonment of tasks when they become difficult. In reality, passion is often developed through competence, effort, and reward, rather than preceding them. Waiting for passion to strike is described as a reliable way to delay progress indefinitely. [1]
The concept of 'grit,' defined as passion and perseverance for long-term goals, is the third myth. Despite its journey from academic journals to bestseller lists and school policies, a meta-analysis of 88 independent samples (Credé et al., 2017) found that grit's relationship with performance is modest. The analysis showed that grit overlaps heavily with the established personality trait of conscientiousness, and perseverance is the true driver of long-term success. Labeling individuals as lacking grit is criticized as repackaging the outdated claim that some people are simply unmotivated, using an emotionally charged term that obscures more nuanced psychological realities. [1]
The fourth myth is the '10,000-hour rule,' which posits that sufficient practice guarantees expertise. Macnamara et al. (2014) debunked this by analyzing deliberate practice studies across various fields. Their meta-analysis revealed that dedicated practice explained varying percentages of performance differences: 26% in games, 21% in music, 18% in sports, 4% in education, and less than 1% in professions. This indicates that while practice is essential, it is not a guarantee of expertise. Objective feedback, strategic adjustments, and openness to criticism are equally critical components of skill development, distinguishing perfect practice from mere engagement. [1]
The fifth and final myth concerns the power of growth mindset interventions on academic achievement. While the idea that intelligence is fixed can limit growth, brief mindset training sessions are presented as ineffective solutions. A systematic review by Macnamara and Burgoyne (2023) of 63 studies involving nearly 100,000 participants found little effect of mindset training on actual achievement. Notably, studies conducted by authors with financial ties to mindset consulting reported more positive results, suggesting a potential conflict of interest. The article concludes that while believing in the capacity for change is important, brief coaching sessions are no more effective than watching an infomercial and expecting immediate transformation. [1]
The article acknowledges that scientists themselves are susceptible to false beliefs, noting that several facts in earlier versions of his work required revision. This admission underscores the self-correcting nature of science and the importance of maintaining an open, revisable understanding of human behavior and cognition. Hoffman invites readers to reflect on their own potential false beliefs, emphasizing that embracing evidence over intuition is an ongoing process rather than a destination. Psychology Today An exploration of five common psychological myths, including the overjustification effect, the 'follow your passion' mantra, the concept of grit, the 10,000-hour rule, and growth mindset interventions, challenging widely held beliefs about motivation and achievement based on extensive meta-analyses. Brock Hoffman's latest article on Psychology Today Brock Hoffman Cerasoli, Nicklin, and Ford O'Keefe, Dweck, and Walton Credé, Tynan, and Harms Macnamara, Hambrick, and Oswald Macnamara and Burgoyne Vreeman and Carroll Psychology Today Terms & Conditions Psychology Today Privacy Policy [1]
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