Evaluating the Impact of Psychoeducation and Sleep-informed Workshop Targeting Sleep Concerns in Women and Individuals With Premenstrual Dysphoric Disorder

The CSD was developed by a committee of experts with the aim of proposing a new improved and standardized sleep diary. This sleep diary will be filled out in the morning and includes questions such as (a) what time the participant went to bed, (b) what time they intended to sleep, (c) how long they were awake during the night, (d) what time they woke for the final time, (e) what time they got out of bed, and (f) how much sleep the participant got that night. From this data, we will derive time in bed, sleep onset latency, wakefulness after sleep onset, total sleep time, and sleep efficiency.

The MAC-PMSS is a 2-month prospective self-report questionnaire used to determine PMDD diagnosis (Frey et al, 2022). As mentioned previously, participants who screen positive for PMDD in the SCID-5 module will be tracked with the MAC-PMSS to confirm a prospective clinical diagnosis of PMDD. For individuals who do not meet criteria for PMDD will be categorized as having PMS, patients will continue to monitor their symptoms with the MAC-PMSS app because the study aims to run analyses on the symptoms reported compared to the daily consensus sleep diary and actigraphy data.

The BRIAN is a self-report assessment designed to assess five domains related to biological rhythms as follows: 1) sleep; 2) activity; 3) social; 4) eating patterns; 5) predominant patterns. The BRIAN contains 18-items rated using a 4-point scale, 1) no difficulty, 2) mild difficulty, 3) moderate difficulty, and 4) severe difficulty. The scale has a Cronbach's alpha of 0.93 and internal consistency of 0.93.

The FAST is a 24-item self-report measure scored on a 5-point scale ranging from 0 ('no difficulty') to 4 ('severe difficulty'). The questionnaire contains 6 subscores: autonomy, occupational functioning, cognitive functioning, financial, interpersonal relationships, and leisure time. In this study, functional impairment will be assessed through the FAST pertaining to the impact of PMDD symptoms on various domains of life.

The GAD-7 is a 7-item self-report measure that assesses anxiety symptom severity over a previous two-week period. Items are measured on a 4-point scale ranging from 0 ('not at all') to 3 ('nearly every day'). A cut-off score of 10 or higher with sensitivity of 89% and specificity of 82% has been suggested for detecting a probable diagnosis of Generalized Anxiety Disorder.

The Beck Depression Inventory-II (BDI-II) is a widely used 21-item self-report measure that assesses the severity of depressive symptoms over the past two weeks. Participants rate each symptom domain on a 0-3 scale. The BDI-II demonstrates strong internal consistency and construct validity across clinical and non-clinical samples and is sensitive to changes in depressive symptom severity.

The DERS is a 36-item self-report scale designed to assess difficulties with emotion regulation. The DERS contains six subscales that measure: non-acceptance goals, impulse, awareness, strategies, and clarity. Items are rated on a 5-point Likert scale, ranging from 1 (almost never, 0-10%) to 5 (almost always, 91-100%), with higher scores reflecting greater difficulties regulating emotions. The DERS has demonstrated good internal consistency (α=0.86) and test-retest reliability (0.74).

The Pain Catastrophizing Scale (PCS) is a 13-item self-report questionnaire commonly used to assess cognitive and emotional responses to pain, including rumination, magnification, and helplessness. Although the current study does not focus primarily on pain, individuals with PMDD often report heightened physical discomfort and pain-related distress during the late luteal phase; therefore, the PCS will help examine how catastrophic thinking about bodily discomfort may relate to sleep disturbances and mood symptoms. The PCS demonstrates excellent internal consistency and strong convergent validity with measures of emotional distress and has been validated in diverse populations.

The Perceived Stress Scale (PSS-10) is a 10-item self-report instrument designed to measure the degree to which individuals perceive situations in their lives as stressful. The PSS is one of the most widely used stress measures, demonstrating strong reliability and validity in adult populations and sensitivity to changes in psychological distress. Because stress is strongly linked to sleep disruption and mood instability in PMDD, this measure will support understanding of how perceived stress levels relate to workshop outcomes.

The Premenstrual Coping Measure (PMCM) is a validated self-report questionnaire assessing coping strategies used by individuals to manage premenstrual symptoms, including emotional regulation, avoidance, self-care, and awareness-based approaches. The PMCM has demonstrated good internal consistency, factorial validity, and sensitivity to differences in coping patterns among individuals with varying levels of premenstrual distress.