

claridge(boot)                               R Documentation

_G_e_n_e_t_i_c _L_i_n_k_s _t_o _L_e_f_t_-_h_a_n_d_e_d_n_e_s_s

_A_r_g_u_m_e_n_t_s_:

    dnan: The genetic measurement on each woman's DNA.

    hand: The measure of left-handedness on an integer scale
          from 1 to 8.

_S_U_M_M_A_R_Y_:

     The `claridge' data frame has 37 rows and 2 columns.

     The data are from an experiment which was designed to
     look for a relationship between a certain genetic char-
     acteristic and handedness.  The 37 subjects were women
     who had a son with mental retardation due to inheriting
     a defective X-chromosome.  For each such mother a
     genetic measurement of their DNA was made.  Larger val-
     ues of this measurement are known to be linked to the
     defective gene and it was hypothesized that larger val-
     ues might also be linked to a progressive shift away
     from right-handednesss.  Each woman also filled in a
     questionnaire regarding which hand they used for vari-
     ous tasks.  From these questionnaires a measure of hand
     preference was found for each mother.  The scale of
     this measure goes from 1, indicating someone who always
     favours their right hand, to 8, indicating someone who
     always favours their left hand. Between these two
     extremes are people who favour one hand for some tasks
     and the other for other tasks.

_D_A_T_A _D_E_S_C_R_I_P_T_I_O_N_:

     This data frame contains the following columns:

_S_O_U_R_C_E_:

     The data were kindly made available by Dr. Gordon S.
     Claridge from the Department of Experimental Psychol-
     ogy, University of Oxford.

_O_T_H_E_R _R_E_F_E_R_E_N_C_E_S_:

     Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Meth-
     ods and Their Application. Cambridge University Press.

