. 2018 Apr 6;8(5):e00956. doi: 10.1002/brb3.956

Table 2.

Psychological questionnaires and region of interest gray matter

	Group (n)	Pre	Post	t test	RM ANOVA
	Group (n)	Pre	Post	t test	Time	Time × group
BSI‐GSI	Therapy (9)	85.6 ± 26.4	70.2 ± 30.3	t(8) = 2.362, p = .023	F(1,14) = 4.69, p < .05, η_p ² = 0.25	F(1,14) = 2.67, p = .13, η_p ² = 0.16
BSI‐GSI	Control (7)	71.6 ± 38.3	69.4 ± 41.8	t(6) = 0.587, p = .289	F(1,14) = 4.69, p < .05, η_p ² = 0.25	F(1,14) = 2.67, p = .13, η_p ² = 0.16
PDS	Therapy (9)	34.4 ± 7.28	28.1 ± 12.0	t(8) = 2.205, p = .029	F(1,14) = 10.01, p < .01, η_p ² = 0.42	F(1,14) = 0.049, p = .82, η_p ² = 0.003
PDS	Control (7)	31.2 ± 14.1	24.0 ± 14.5	t(6) = 2.284, p = .031	F(1,14) = 10.01, p < .01, η_p ² = 0.42	F(1,14) = 0.049, p = .82, η_p ² = 0.003
PTCI	Therapy (9)	132.8 ± 30.2	108.8 ± 33.1	t(8) = 2.767, p = .012	F(1,13) = 7.85, p < .05, η_p ² = 0.38	F(1,13) = 0.05, p = .82, η_p ² = 0.004
PTCI	Control (6)	125.5 ± 22.6	105.2 ± 46.9	t(5) = 1.402, p = .110	F(1,13) = 7.85, p < .05, η_p ² = 0.38	F(1,13) = 0.05, p = .82, η_p ² = 0.004
IPSI	Therapy (9)	3.8 ± 1.3	3.2 ± 1.1	t(8) = 1.940, p = .044	F(1,13) = 2.97, p = .11, η_p ² = 0.19	F(1,13) = 0.49, p = .50, η_p ² = 0.036
IPSI	Control (6)	3.2 ± 1.0	3.0 ± 1.5	t(5) = 0.648, p = .273	F(1,13) = 2.97, p = .11, η_p ² = 0.19	F(1,13) = 0.49, p = .50, η_p ² = 0.036
Hippocampus	Therapy (6)	0.53 ± 0.04	0.55 ± 0.03	t(5) = −2.11, p = .045	F(1,13) = 1.49, p = .24, η_p ² = 0.10	F(1,13) = 7.33, p < .05, η_p ² = 0.36
Hippocampus	Control (9)	0.54 ± 0.03	0.53 ± 0.03	t(8) = 1.39, p = .102	F(1,13) = 1.49, p = .24, η_p ² = 0.10	F(1,13) = 7.33, p < .05, η_p ² = 0.36
Amygdala	Therapy (6)	0.59 ± 0.05	0.61 ± 0.05	t(5) = −1.316, p = .123	F(1,13) = 1.37, p = .26, η_p ² = 0.095	F(1,13) = 2.92, p = .11, η_p ² = 0.18
Amygdala	Control (9)	0.59 ± 0.04	0.58 ± 0.04	t(8) = 0.690, p = .255	F(1,13) = 1.37, p = .26, η_p ² = 0.095	F(1,13) = 2.92, p = .11, η_p ² = 0.18

Means and standard deviations are displayed for psychological questionnaire data and region‐of‐interest gray matter, collected at the first (Pre) and second (Post) assessment, separately for the therapy and waiting‐list control groups, along with paired samples t tests (one‐tailed) and repeated measures ANOVA. RM ANOVA, repeated measures analysis of variance; BSI‐GSI, Brief Symptom Inventory Global Severity Index; PDS, Posttraumatic Diagnostic Scale; PTCI, Posttraumatic Cognitions Inventory; IPSI, Interpretation of PTSD Symptoms Inventory; η_p ², partial eta‐squared.