The dz values were 0.02, 0.01 and 0.04 for the BT, TT and FI, respectively. The dz was calculated to assess the meaningfulness of differences between test and retest performance indices of the RSTT. According to the modified scale of Hopkins, the differences observed between test and retest performance indices of the RSTT were assumed to be trivial. The dz results of the current study agree with the data reported previously, which confirm the relative reliability of the RSTT performance indices.