Final answer:
Research on expertise shows that grit and perseverance are better predictors of success than talent, indicating that hard work and sustained effort are crucial for achieving expert-level skills.
Step-by-step explanation:
The question pertains to psychological studies of expertise and human performance, specifically addressing whether talent is necessary for becoming an expert in a given field. Two findings from research in this area suggest that attributes other than inherent talent are significant. First, a key finding is that grit and perseverance have been shown to be better predictors of academic success and achievement than talent or IQ. Secondly, consistent long-term practice and effort have also been identified as critical factors contributing to the attainment of expert-level skills. This emphasizes the importance of sustained hard work over time and suggests that an individual's commitment to improvement may be more crucial than innate ability.