Why Is Behavioural Genetics A Hated Science? - Dr Stuart Ritchie

TL;DR

Misconceptions about behavioral genetics have led to distrust and dislike in the field, but the reality is that genetics plays a complex role in behavior and traits are not completely unchangeable.

Transcript

candidate Gene research this particular Gene is related to depression this particular Gene is related to memory skills and so it makes you smarter endless research on that loads and loads and loads of papers published across all the top journals millions of dollars of research funding people raising their entire careers writing their PHD dissertati... Read More

Key Insights

• 😀 Behavioral genetics has faced backlash and distrust due to misconceptions about genetics, such as immutability and political implications.
• ⛑️ Priming studies, which suggested that subtle cues in the environment can have a significant impact on behavior, have been largely discredited.
• 👨‍🔬 The replication crisis has had a significant impact on the field of behavioral genetics, particularly in candidate gene research.
• 💪 There is a need for more rigorous controls and stronger replication efforts in behavioral genetics studies.

Questions & Answers

Q: Why does behavioral genetics have such a negative reputation?

There are misconceptions about genetics being immutable and having political implications, leading to distrust and dislike in the field.

Q: How does environment affect genetics?

Environment can alter the expression of genetic traits, such as how glasses correct myopia or malnutrition stunts growth. However, there is no equivalent environmental intervention for complex traits like personality or intelligence.

Q: Is there a difference between specific skills and general intelligence?

General intelligence explains a significant portion of the variation across different types of intelligence tests. However, there are also specific skills that can vary independently of general intelligence.

Q: How has the replication crisis affected behavioral genetics?

Behavioral genetics was one of the first fields to be affected by the replication crisis, particularly with regards to candidate gene research. However, the field has since moved towards more reliable methods such as genome-wide association studies.

Q: How does growth mindset fit into the replication crisis?

The idea of growth mindset has been overhyped, with early claims that it could have a transformative effect on individuals and society. Meta-analyses have shown that the effects of growth mindset are small and should be considered as part of a broader toolkit in education.

Summary & Key Takeaways

• Behavioral genetics research on candidate genes, which was once highly regarded, has been found to be largely unreplicable and flawed.

• Misconceptions about genetics, such as immutability and political implications, contribute to the distrust in behavioral genetics.

• Environment influences how genetics manifest and change over time, as seen in studies on educational attainment in different political regimes.

• The role of genetics in behavior and traits, such as intelligence and height, differs from that of non-political traits.