Detecting extended technicolor effects via the process e(+)e(-)-> t(t)over-bar at high energy e(+)e(-) linear collider

We calculate the corrections of extended technicolor (ETC) interactions to the asymmetry parameter A(LR) and the polarized parameters P-L(t), P-R(t) o f the process e(+)e(-) --> t (t) over bar in topcolor-assisted multiscale t echnicolor model. Our results show that the ETC effect on P-R(t) is negligi bly small which can be safely ignored, and the ETC effect on A(LR) may be t estable at high energy e(+)e(-) linear collider (LC). For 0.03 less than or equal to epsilon less than or equal to 0.1, 500 GeV less than or equal to roots less than or equal to 800 GeV, the relative correction of P-L(t) is i n the range of 15% less than or equal to deltaP(L)(t)/P-L(t,SM) less than o r equal to 39% which will certainly be detected at the LC experiments (for example TESLA).