Table 4.

Standardized Simple Slope Effects of Weekly Deviation from E2 Person Mean on BPD Features, Symptoms, and Correlates at Lower-than-Usual P4 and Higher-than-Usual P4 among Women High in Trait BPD (+1 SD)

	Standardized Simple Effect of Weekly Deviation from E2 Person Mean (β)
Outcome	At Lower-than-usual P4	At Higher-than-usual P4
PAI-BOR Total Score†	.02	−.23**
PAI-BOR Affective Instability†	.08	−.62**
PAI-BOR Identity Disturbance†	3-way Interaction N.S.	3-way Interaction N.S.
PAI-BOR Negative Relations†	.18	−.33**
PAI-BOR Self-Harm†	.06	−.17*
McLean Screening Inventory for BPD†	.12	−.66**
Borderline Feature Checklist-23†	.17	−.42**
PANAS Negative Affect†	3-way Interaction N.S.	3-way Interaction N.S.
PANAS Positive Affect	−.15	.40*
SSES Social Evaluation (Felt Rejection)	.05	−.81**
RRQ Rumination (SF)	3-way Interaction N.S.	3-way Interaction N.S.
ARS Anger Rumination (SF)†	.02	−.91**
UPPS-P Negative Urgency†	.15	−.94**
UPPS-P Positive Urgency	−.09	−.42**
UPPS-P Lack of Premeditation	.18	−.73**
UPPS-P Lack of Perseverance	3-way Interaction N.S.	3-way Interaction N.S.
UPPS-P Sensation	Seeking Interaction N.S.	3-way Interaction N.S.

Note.

^*p < .01.

^**p < .001.

For each significant three-way interaction between trait BPD features, E2 deviation, and P4 deviation, the two-way E2 × P4 interaction was significant only among women high (+1 SD) in trait BPD features (measured using one’s average score on the PAI-BOR total across all four weeks). Therefore, this table presents the simple slopes of E2 deviation at lower- and higher-than-usual P4 among women high in trait BPD only.

Lower-than-usual = 1 SD below the mean. Higher-than-usual = 1 SD above the mean. P4 Person Mean = Average P4 across 4 weekly samples. PAI – BOR = Personality Assessment Inventory – Borderline subscale. PANAS = Positive and Negative Affect Scale. SSES = State Self-Esteem Scale – Social Evaluation Subscale, which was coded such that higher scores indicate greater felt rejection. RRQ = Rumination-Reflection Questionnaire. MSI-BPD = McLean Screening Instrument for Borderline Personality Disorder. BSL-23 = Borderline Feature Checklist- 23-item Version.

^†Analyses for these variables were performed on a square root transformation of the variable. However, the coefficients for these outcomes have been squared prior to standardization.