Intensive Repeated Measures in Naturalistic Settings (IRM-NS) Flashcards
IRM-NS acronym
Intensive Repeated Measures in Naturalistic Settings
One Occasion Self-Report Questionnaires: Strengths (3)
- Standardization of stimuli
- Ease of use
- Capacity for high content validity due to sampling domain
One Occasion Self-Report Questionnaires: Weaknesses (2)
- Reconstructive memory processes
- Impression management/social desirability
Behavioral Observation: Strengths (2)
- No memory problems
- Impression management less of an issue
Behavioral Observation: Weaknesses/issues (3)
(1) Resource intensive
(2) Naturalistic setting
-> Often need long observation periods to obtain valid scores
-> Limited access to populations
(3) Laboratory setting
-> Artificial situation/limited sampling of behaviors
-> Limited sampling of situations
IRM-NS: Key features (5)
- Self-observations
- Naturalistic settings
- Multiple reports
- Close in time to occurrence of characteristic
- Relies on recent episodic memory
Designs for Collecting IRM-NS (4)
- Time-Contingent Recording
- Event-Contingent Recording
- Signal-Contingent Recording
- “Burst” Designs
Time-Contingent Recording def
Fixed time interval sampling
E.g. Daily diaries (At the end of the day, complete diary -> prompted response)
Event-Contingent Recording def
Event sampling (e.g. complete form as soon as possible following social interaction)
-> Records completed after a certain event
Signal-Contingent Recording def
Aka “Beeper” method. Random time interval sampling
-> Signal at random time to report whatever they have to report
-> Collect info that represents the entire living experience (random sampling)
“Burst” Designs def
Periods of measurement interspersed with periods of no measurement
-> Can be ANY of the designs
-> Useful for events when we know there’s change happening (e.g. children grow, pple undergo treatment…)
IRM-NS: Strengths (5)
- Less reliance on participant’s retrospective memories
- Less reliance on participant to integrate information about self
- Can provide contextual information
- Aggregation of multiple assessments should improve quality of information
- Can be used to characterize fluctuations in the individual as well as stability
Ways to Establish Reliability in IRM-NS (2)
- Internal Consistency:Can be assessed for individual measurements or aggregated scores.
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Stability Over Time:Autocorrelations of daily aggregated scores and within-day standard deviations can evaluate temporal stability. These should be consistent if the phenomenon is stationary.
-> Both with alpha
How to Measure Stability Across Days (Social Behavior Inventory)
-> The mean of each scale calculated for each day
-> Coeff Alpha was calculated for each scale based on each of 20-day scores
Coeff alpha often increase as time passes by (4 days < 1 month) - time for behaviour to be stabilized
How to Measure Internal Consistency (Social Behavior Inventory)
Coeff alpha