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These studies suggest that IQ scores can change over time due to factors like age, educational changes, and specific conditions such as learning disabilities, with some showing minimal change and others experiencing significant variations.
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The question of whether IQ scores change over time has been a subject of extensive research. Various studies have examined the factors influencing these changes, including societal, educational, and developmental aspects. This synthesis aims to present the key insights from multiple research papers on this topic.
Secular Rise in IQ Scores (Flynn Effect)
Influence of Societal and Educational Changes
Variability in IQ Changes
Impact of Age and Developmental Level
Measurement Invariance
In summary, IQ scores do change over time, primarily showing an increase due to the Flynn Effect. This rise is influenced by societal and educational improvements. However, the extent and reliability of these changes can vary, particularly among different age groups and developmental levels. Measurement invariance also plays a role in the comparability of IQ scores across different time periods.
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