The correlation between reading and mathematics ability at age twelve has a substantial genetic component

Area of Science:

• Behavioral Genetics
• Developmental Psychology
• Educational Neuroscience

Background:

• Understanding the interplay of genetic and environmental factors is crucial for enhancing learning outcomes in literacy and numeracy.
• Individual differences in cognitive abilities emerge from complex interactions between inherited predispositions and external influences.

Purpose of the Study:

• To investigate the genetic and environmental contributions to children's abilities in reading and mathematics.
• To quantify the extent to which shared genetic effects underlie the correlation between these academic skills.

Main Methods:

• Utilized twin studies to differentiate between genetic and environmental influences on learning.
• Employed genome-wide analysis to identify specific genetic components associated with reading and mathematical abilities.

Main Results:

• A substantial genetic component significantly impacts children's proficiency in both reading and mathematics.
• Approximately 50% of the observed correlation between reading and math abilities is attributable to shared genetic factors, termed 'Generalist Genes'.

Conclusions:

• Genetic factors play a significant role in shaping children's academic abilities in reading and mathematics.
• Environmental factors also contribute to variations in cognitive abilities, particularly by age twelve, highlighting the importance of the learning environment.