| They corrected deviations of internal clocks by comparison with radio controlled wristwatches. |
| Sample means, trimmed means, medians, standard deviations, minimums, maximums, skewness and kurtosis are reported. |
| The data were analyzed in several ways, incorporating frequencies, percentages, means, medians, and standard deviations. |
| Data are described as frequencies, medians with ranges, and means with standard deviations. |
| Where possible we tabulated results in terms of means and standard deviations for consultations and proportions for prescribing and referrals. |
| Test scores, presented as unadjusted means and standard deviations for the major groups tested, show the magnitudes of the mean numerical scores. |
