Adler                  package:car                  R Documentation

_E_x_p_e_r_i_m_e_n_t_e_r _E_x_p_e_c_t_a_t_i_o_n_s

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

     The `Adler' data frame has 97 rows and 3 columns.  

     The ``experimenters'' were the actual subjects of the study. 
     They collected ratings of the apparent successfulness of
 people
     in pictures who were pre-selected for their
 average appearance.
     The experimenters were told prior to collecting 
 data that the
     pictures were either high or low in their 
 appearance of success,
     and were instructed to get good data, 
 scientific data, or were
     given no such instruction. Each 
 experimenter collected ratings
     from 18 randomly assigned
 respondents.

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


     data(Adler)

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

     This data frame contains the following columns:

     _i_n_s_t_r_u_c_t_i_o_n a factor with levels:
 `GOOD', good data;
 `NONE', no
          stress;
 `SCIENTIFIC', scientific data.
 

     _e_x_p_e_c_t_a_t_i_o_n a factor with levels:
 `HIGH', expect high ratings;
          `LOW', expect low ratings.
 

     _r_a_t_i_n_g The average rating obtained.  
 

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

     Adler, N. E. (1973)
 Impact of prior sets given experimenters and
     subjects on the experimenter
 expectancy effect.
 Sociometry 36,
     113-126.

_R_e_f_e_r_e_n_c_e_s:

     Erickson, B. H., and Nosanchuk, T. A. (1977)
 Understanding Data.
     McGraw-Hill Ryerson.

