spector               package:faraway               R Documentation

_T_e_a_c_h_i_n_g _m_e_t_h_o_d_s _i_n _E_c_o_n_o_m_i_c_s

_D_e_s_c_r_i_p_t_i_o_n:

     A study to determine the effectiveness of a new teaching method in
     Economics

_U_s_a_g_e:

     data(spector)

_F_o_r_m_a_t:

     A data frame with 32 observations on the following 4 variables.

     _g_r_a_d_e 1 = exam grades improved, 0 = not improved

     _p_s_i 1 = student exposed to PSI (a new teach method), 0 = not
          exposed

     _t_u_c_e a measure of ability when entering the class

     _g_p_a grade point average

_S_o_u_r_c_e:

     Spector, L. and Mazzeo, M. (1980), "Probit Analysis and Economic
     Education", Journal of Economic Education, 11, 37 - 44.

