90
Skin conductance
The percentage of responses greater than .02 micro
sieman was analyzed using a repeated measures analysis of
variance with group (LHD, LH NCS, RHD, RH NCS) as the
between subjects factor and tone (low and high) as the
within subject factor. One RHD subject was excluded due to
faulty electrode connections which resulted in corrupt data.
Results revealed that the main effect of group, tone, and
the group by tone interaction were not significant. The
mean percentage of responses and standard deviations for
each group were as follows: LHD, mean=8.07%, sd=25.73; LH
NCS, mean=25.52%, sd=36.16; RHD, mean=7.67%, sd=19.19; RH
NCS, mean=29.69%, sd=26.47. The full ANOVA table, Table C-
3, is presented in Appendix C.
The recoded range corrected skin conductance response
(SCR) was analyzed using a repeated measures analysis of
variance (ANOVA) with group (LHD, LH NCS, RHD, RH NCS) as
the between-subject factor and tone (low, high) and block (1
to 8) as the within subject factors. As mentioned above,
one subject was excluded due to corrupt data. The main
effect for group [F(3,43) = 1.91, P =.1421], block [F(7,43)
= 1.20, P = .3017], and tone [F(l,43) = .21, P = .6495] were
not significant. The interactions between block and group
[F(21, 301) = .70, P = .8305], tone and group [F(3,43) =
.33, P = .80], and between block, tone, and group [F(21,301)
= .87, P = .6244] were also not significant. The full ANOVA