The increasing reliance on standardized testing has fueled a persistent academic debate regarding its efficacy in truly measuring student aptitude. Proponents argue that these uniform assessments provide an objective, quantifiable metric, allowing educational systems to benchmark performance across diverse geographical locations and resource levels with necessary impartiality. However, critics contend that such tests often measure rote memorization and test-taking skills rather than deep, creative understanding or critical thinking—qualities essential for real-world problem-solving. Furthermore, the high stakes attached to these scores can induce undue pressure, potentially narrowing the curriculum to only tested subjects. A balanced view suggests that while standardized metrics offer valuable diagnostic data points for systemic improvement, they must function as supplementary tools rather than definitive judgments of a student’s entire intellectual capacity or potential. Based on the passage, what is the central argument regarding the role of standardized testing?