Table 4.
Baseline Comparisons in Episodic Memory
| Study 1 | Study 2 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Healthy Control | Past Year SI | Psychiatric Control | Past Year SI | ||||||
| M (SD) | M (SD) | df | d | M (SD) | M (SD) | df | r | ||
| Fluency count | 6.19 (1.90) | 5.73 (1.64) | 23 | −.27 | 6.33 (1.65) | 5.97 (2.04) | 137 | −.14 | |
| Self-report ratings | |||||||||
| Vivid | 3.94 (0.85) | 4.04 (0.56) | 23 | .02b | 4.35 (0.30) | 4.43 (0.44) | 134 | .18a | |
| Duration | 3.13 (0.54) | 3.01 (0.80) | 23 | −.18 | 3.28 (0.61) | 3.39 (0.62) | 134 | .12 | |
| Similar | 3.27 (0.53) | 3.04 (0.48) | 23 | −.46 | -- | -- | -- | -- | |
| Valence | 3.79 (0.38) | 4.03 (0.48) | 23 | .59 | 2.97 (0.17) | 3.06 (0.54) | 134 | .03 | |
| Arousal | 3.14 (0.61) | 3.71 (0.51) | 23 | .47 | -- | -- | -- | -- | |
| Internal details (IDs) | |||||||||
| Total ID | 35.15 (12.19) | 27.73 (11.15) | 23 | −.66 | 35.71 (12.00) | 31.65 (11.06) | 98 | −.21a | |
| ID-Event | 17.27 (8.65) | 13.60 (5.65) | 23 | −.52 | 19.09 (6.39) | 17.38 (6.56) | 98 | −.15 | |
| ID-Place | -- | -- | -- | -- | 3.04 (1.66) | 2.56 (1.84) | 98 | −.19 | |
| ID-Time | 2.73 (1.05) | 2.23 (1.39) | 23 | −.43 | 2.72 (1.89) | 2.10 (1.33) | 98 | −.15 | |
| ID-Percept | -- | -- | -- | -- | 5.41 (4.33) | 4.70 (4.23) | 98 | .09 | |
| ID-Em/Tho | 4.83 (1.99) | 4.40 (1.87) | 23 | −.23 | 5.48 (4.40) | 5.09 (3.04) | 98 | −.01 | |
| External details | 25.85 (9.93) | 24.52 (15.14) | 23 | −.11 | 18.34 (10.74) | 16.26 (10.09) | 98 | −.09 | |
Note. ID=Internal details (coded episodic detail count from imagining/recalling events for 3 minutes); ID-Percept=Perceptual internal detail subtype; ID-Em/Tho=Emotion or thought-related internal details. External details represent non-episodic details. Fluency represents the total number of events imagined/recalled within 1 minute. No significant differences in autobiographical memory were detected across suicidal and nonsuicidal adults. No group comparisons remained significant after controlling the False Discovery Rate via the Benjamini-Hochberg procedure.
a
p < .05 before controlling the FDR
b
represents r value from non-parametric group comparisons.