Contents of It's not All in Your Head by Asmundson and Taylor

married (71%) and almost all participants were Caucasian (93%). All participants had
completed high school and most had some post-secondary education (79%). The control
group had an overrepresentation of individuals who were unmarried (50%), students
(75%), having more than a high school education (100%), and not taking psychotropic
medication (25%). Analyses (χ 2 ) failed to show statistically significant group differences;
However, the assumptions of χ 2 were violated (because of the small sample size) making
the analyses invalid.
3.1.3. SHB results and within-group comparisons
ITT analyses and results for the SHB and WLC groups are reported below.
Analyses were also conducted for participants who completed the entire study, excluding
those who dropped out. Those results were very similar to the ITT analyses and they are
reported in Appendix C.
SHB participants experienced significant reductions in health anxiety symptoms
based on their SHAI and MIHT primary outcome measure scores (see Table 3). SHB
scores on the SHAI were compared to the healthy normative mean reported in the
Salkovskis et al., (2002) validation study (Table 3). The SHAI T1 scores were above
average but they were reduced by T3; a statistically significant improvement (t = 3.68, df
= 9, p = .003; power = .91 [high power]; see Table 3). A large effect size was detected (d
= 1.75). These results are clinically significant because the SHAI scores were outside the
healthy normative range at T1 (range M = 0.20 - 24.60) but they were within that range
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