CBT-I Treatment Outcomes & Research Evidence Flashcards

The Spielman 3P model describes insomnia in terms of:

Answer: Predisposing, precipitating, and perpetuating factors

The 3P model categorizes insomnia factors as predisposing (vulnerability), precipitating (triggers), and perpetuating (maintaining behaviors and cognitions).

Actigraphy is used in insomnia research primarily to:

Answer: Provide objective estimates of sleep-wake patterns over multiple nights in the home environment

Actigraphy uses wrist-worn movement sensors to estimate sleep-wake patterns across weeks, providing ecological validity lacking in single-night PSG.

The Pittsburgh Sleep Quality Index (PSQI) measures:

Answer: Subjective sleep quality across 7 components over the past month

The PSQI assesses seven components of sleep quality (duration, disturbance, latency, daytime dysfunction, etc.) over the preceding month.

Sleep efficiency is calculated as:

Answer: Total sleep time divided by time in bed multiplied by 100

Sleep efficiency (SE%) = (total sleep time ÷ time in bed) × 100, and a target of ≥85% is typically used in CBT-I.

The Dysfunctional Beliefs and Attitudes about Sleep (DBAS) scale measures:

Answer: Maladaptive sleep-related cognitions such as unrealistic sleep expectations and catastrophizing

The DBAS assesses the specific cognitive distortions about sleep that CBT-I cognitive restructuring aims to modify.

Which outcome is considered the primary measure of daytime impairment in CBT-I research?

Answer: Fatigue, mood, and cognitive performance measures

Daytime functioning outcomes — fatigue, depression, anxiety, and cognitive performance — are standard secondary measures in CBT-I research alongside nighttime sleep variables.