422  APPENDIX

Rating:  Apply  formula  II.  Point  of  reference  is  perfect  completion ­
  of  40  units  in  160  seconds;  RU,  40;  Ru,  4  secs.;
errors  count  2.  Apply  to  sample  record  above,
4  X  (40  -  20)
—  .oO.
IOO

G.  TYPIST  TESTS
1.  Order  of  Procedure:  (a)  Shock  absorber
(b)  IS
(c)  13c
(d)  16
(e)  20T3
2.  Shock  Absorber:  As  a  shock  absorber,  give  subject  a  typewritten ­
  letter  with  several  glaring  mistakes  in  spacing,
punctuation,  and  capitalization.  Ask  subject  to  read  this
letter  and  check  off  the  mistakes.  This  test  should  be
very  simple  and  easy.
3.  Pro-rating:  The  applicant’s  desirability  is  determined  by
pro-rating  the  above  tests  according  to  the  formula:
.10  X  ri5  .25  X  ri3c  +  .25  X  ri6  +  .40  X  r2oT3  =  R.
From  this  it  will  be  seen  that  the  typing  test  counts  much
more  than  any  other,  viz.,  40%,  while  the  context  and  spelling ­
  tests  count  25%  each,  and  the  letter  substitution  test
10%.  However,  in  the  case  of  a  new  typist,  just  out  of
school,  who  has  not  yet  had  time  to  develop  speed  on  the
machine,  it  is  advisable  to  count  the  typing  test  only  25%,
and  tests  13c,  16,  and  15,  30%,  30%,  and  15%  respectively.
Thjs  is  on  the  assumption  that  ability  in  these  tests  predicates ­
  a  good  basis  for  future  ability  as  a  typist.  See
Chapter  VIII.
4.  Standards:  From  .60  to  1.00  shall  be  recommended;  between
.50  and  .60  shall  be  recommended  for  a  trial  under  close
supervision.