Which aspect of IQ testing does low predictive validity affect?

Low predictive validity in IQ testing specifically affects the estimation of future success. Predictive validity refers to the extent to which a test accurately forecasts outcomes. In the context of IQ tests, if these assessments have low predictive validity, it implies that they do not reliably predict a person's future achievements, such as academic performance, career success, or problem-solving abilities.

This means that a person may score highly on an IQ test but may not necessarily excel in real-world tasks or professional settings. Factors such as emotional intelligence, motivation, and social skills can contribute to a person's future success but are not captured by a standard IQ test. Therefore, a low predictive validity in these tests can lead to misconceptions about a person's potential based solely on their IQ score.

In contrast, while the measurement of intelligence, accuracy of assessments, and standardization of scores are important aspects of IQ testing, they do not directly address the correlation between test scores and actual success in various domains of life, which is the primary concern when discussing predictive validity.