The following conclusions may be regarded as
(1) When the w Test is repeated fifty times the
score, in the case of the majority of subjects,
continues to vary right up to the last trial,
whether the test is scored purely as an alternation test, purely as a creative effort test,
or as a combination of the two. While the
variability is reduced if the mean score for five
successive trials, subsequent to the fifteenth,
be taken, even this does not give a wholly reliable score.
(2) The mean score, obtained in the w Test, for
any group of five or more trials, subsequent to
the fifth, is largely determined by the form of
reversed w used by the subject.
(3) The score of an alternation test is not a pure
measure of the subject's difficulty in alternating the two kinds of unit, of which the test is
composed, unless these two kinds of unit are
equal in difficulty, or unless a correction has
been made for the effect on the score of their
inequality in difficulty.
(4) An alternation test consisting of "short" units
gives a much higher perseveration score, on the
average, than one consisting of "long" units.
Two tests of the former kind have been found to
have a fairly high correlation with each other,
but the perseveration score in tests of this
type correlates highly with speed in the X part,
even although they are scored by the "ratio method ".
(5) When a group of normal young adult subjects, who
had a cooperative attitude towards the test, were
instructed to work as fast as possible, and
another such group were instructed to work at
their natural pace, the mean speed of the two
groups, in the X part of two alternation tests
consisting of "long" units, was practically the
same. In the w Test, the mean perseveration
score was also the same, but in the Division Signs
Test, the mean perseveration score was significantly higher for the group who worked as fast as
possible. In an alternation test consisting of
"short" units, both the mean perseveration score
and the mean speed in the X part, were significantly higher, in the group who worked as fast as
(6) The Division Signs Test correlates significantly
with intelligence, as measured by the National
Intelligence Test, Scale A, Form 2.
(7) When the score in the w Test, scored as an
alternation test, is less than unity, this cannot
be regarded as due to a rhythm, which manifests
itself in a relatively long pause after the pairs
of ws in the Y part, and thus enables recuperation to take place, and the rest of the Y
part to be done relatively faster than the X
parts. There is some evidence, that it may be
due in part to a warming up process, which occurs
in both the X₂ and the Y part but which has
proportionately more effect in the Y part, because it is twice as long as the X₂ part.