The partial correlation of postgraduate attainment with entry qualifications after taking assessment time into account was not significant (partial r S, =.340, p = .131, 19 df).
The partial correlation of mean postgraduate attainment with minutes of assessment time, after taking entry qualifications into account remained significant (partial r S, =.456, p = .038, 19 df).
The proper way to assess the effect of entry qualifications is to assess the partial correlation of mean postgraduate attainment with minutes of assessment, after taking entry qualifications into account.
"Test results at key stage 2 are so narrow in describing pupil attainment it only gives secondary schools partial information at best," she said.
Alternatively, it is also plausible that educational attainment may represent at least a partial proxy for individual differences in IQ, as may also be the case for military rank.
However, beta-coefficient estimates are in general very volatile, and do not take into account the variation in the dispersion of educational attainment for parents and children, which the partial correlation coefficient does.
Where some ductility exists before debonding of FRP from concrete, algebraic analysis based on the structure's stiffness profile is used to help show that partial convergence between cracked and design moment distributions can lead to attainment of intended load capacity.
