Table 4.
Parameter estimates for males and females separately and together.
| Measure | Variance of A (95%CI) | Variance of C (95%CI) | Variance of E (95%CI) | |
|---|---|---|---|---|
| Number Sense accuracy | Males | .35 (.07–.44) | .00 (.00–.24) | .65 (.56–.75) |
| Females | .34 (.13–.41) | .00 (.00–.17) | .66 (.59–.74) | |
| All | .35 (.30–.41) | .N/A | .65 (.59–.70) | |
| Weber Fraction | Males | .34 (.13–.43) | .00 (.00–.16) | .67 (.56–.77) |
| Females | .29 (.06–.37) | .00 (.00–.19) | .71 (.63–.80) | |
| All | .32 (.26–.37) | N/A | .68 (.63–.74) |
A, C, E = estimates respectively of genetic influences, shared environment, non-shared environment. 95% CI = 95% confidence intervals. Estimates separate for males and females and together for the accuracy scores and the Weber Fraction scores. The overlapping CI of the parameter estimates in males and females shows that the estimates of males and females do not significantly differ. Parameter estimates for males and females separately are from the Sex-Limitation model fitting. Estimates for males and females together are from the univariate model fitting, reported in bold font. The best fitting model did not include estimates for shared environment.