Table 3 Correlated factor solution for multivariate genetic analyses, showing phenotypic correlations (rPh), genetic correlations (rG), shared-environmental (rC) and non-shared environmental (rE) correlations between GCSE exam grades after correcting for intelligence, with 95% confidence intervals in parentheses.

From: Pleiotropy across academic subjects at the end of compulsory education

 

English

Mathematics

Science

Humanities

Second language

Art

Business informatics

r Ph

 English

1

      

 Mathematics

0.57 (0.54–0.59)

1

     

 Science

0.58 (0.55–0.60)

0.65 (0.63–0.67)

1

    

 Humanities

0.69 (0.67–0.71)

0.58 (0.55–0.60)

0.60 (0.58–0.62)

1

   

 Second language

0.62 (0.60–0.65)

0.55 (0.52–0.58)

0.55 (0.52–0.55)

0.57 (0.54–0.60)

1

  

 Art

0.47 (0.43–0.50)

0.40 (0.36–0.43)

0.39 (0.35–0.43)

0.48 (0.44–0.52)

0.40 (0.36–0.47)

1

 

 Business informatics

0.52 (0.48–0.55)

0.54 (0.50–0.57)

0.52 (0.49–0.56)

0.51 (0.48–0.55)

0.47 (0.42–0.51)

0.38 (0.32–0.43)

1

r G

 English

1

      

 Mathematics

0.54 (0.54–0.64)

1

     

 Science

0.64 (0.54–0.74)

0.69 (0.59–0.78)

1

    

 Humanities

0.81 (0.73–0.90)

0.57 (0.44–0.69)

0.68 (0.56–0.80)

1

   

 Second language

0.72 (0.59–0.85)

0.49 (0.31–0.65)

0.56 (0.40–0.71)

0.66 (0.51–0.83)

1

  

 Art

0.69 (0.52–0.89)

0.66 (0.44–0.90)

0.51 (0.30–0.73)

0.56 (0.37–0.75)

0.60 (0.34–0.88)

1

 

 Business informatics

0.62 (0.42–0.86)

0.57 (0.35–0.77)

0.63 (0.41–0.87)

0.65 (0.44–0.90)

0.58 (0.29–0.88)

0.65 (0.32–0.98)

1

r C

       

 English

1

      

 Mathematics

0.92 (0.72–0.94)

1

     

 Science

0.66 (0.31–0.94)

0.81 (0.62–0.95)

1

    

 Humanities

0.85 (0.59–0.99)

0.83 (0.61–0.98)

0.79 (0.52–1.00)

1

   

 Second language

0.81 (0.48–1.00)

0.81 (0.62–0.95)

0.75 (0.41–1.00)

0.8 (0.48–1.00)

1

  

 Art

0.27 (−0.39–0.72)

0.15 (−0.44–0.61)

0.40 (−0.20–0.86)

0.66 (0.15–0.93)

0.26 (−0.38–0.79)

1

 

 Business informatics

0.63 (0.06–1.00)

0.82 (0.38–1.00)

0.57 (−0.02–0.86)

0.65 (0.08–1.00)

0.6 (−0.04–1.00)

0.01 (−0.79–0.80)

1

r E

       

 English

1

      

 Mathematics

0.43 (0.37–0.48)

1

     

 Science

0.42 (0.36–0.48)

0.51 (0.45–0.56)

1

    

 Humanities

0.42 (0.35–0.48)

0.42 (0.35–0.48)

0.36 (0.29–0.43)

1

   

 Second language

0.37 (0.28–0.44)

0.45 (0.38–0.52)

0.39 (0.31–0.47)

0.28 (0.25–0.37)

1

  

 Art

0.20 (0.10–0.30)

0.17 (0.06–0.27)

0.21 (0.10–0.31)

0.26 (0.15–0.37)

0.20 (0.06–0.33)

1

 

 Business informatics

0.34 (0.23–0.43)

0.37 (0.27–0.47)

0.37 (0.26–0.46)

0.28 (0.17–0.39)

0.27 (0.14–0.40)

0.18 (0.01–0.35)

1