the value of the average _ET_. This latter value, we find, by
computing by the formula given above, using the four terms whose
values lie nearest to the _Y_ axis, is 5.25 secs.

In Table II are given similar computations for each of the nine
subjects employed, and from this it will be seen that in every case
the standard is overestimated.


TABLE II. _ST_= 5.0 SECS.

Subject. Average ET. No. of Series.
_A_. 5.75 50
_B_. 5.13 40
_Hs_. 5.26 100
_P_. 5.77 38
_Mn_. 6.19 50
_Mr_. 5.25 60
_R_. 5.63 24
_Sh_. 5.34 100
_Sn_. 5.57 50


This overestimation of the 5.0 sec. standard agrees with the results
of some of the experimenters on auditory time and apparently conflicts
with the results of others. Mach[4] found no constant error. Höring[5]
found that intervals over 0.5 sec. were overestimated. Vierordt,[6]
Kollert,[7] Estel[8] and Glass,[9] found small intervals overestimated
and long ones underestimated, the indifference point being placed at
about 3.0 by Vierordt, 0.7 by Kollert and Estel and 0.8 by Glass.