Ch. 4 - Approaches to Psychological Measurement Flashcards
(47 cards)
What three decisions must be made for observational approaches?
Will the observation occur in a natural or conceived setting? Will they know they are being observed? How will participants’ behaviour be recorded?
What is naturalistic observation?
Observation of ongoing behaviour as it occurs naturally with no intrusion or intervention by the researcher.
What is participant observation?
One type of naturalistic observation; the researcher engages in the same activities he/she is observing.
What are two consequences of naturalistic observation?
May lose ability to observe and record objectively, may risk reactance.
What is contrived observation?
The observation of behaviour in a setting that is arranged specifically for observing and recording behaviour.
What is a partial concealment strategy?
When people are informed that they are being observed, but not told what is being observed.
What are unobtrusive measures?
Measures taken without participants knowing that they are being studied.
What are the four main categories of behavioural recording?
Narrative records, checklists, temporal measures, and rating scales.
What are narrative records?
A full description of the participant’s behaviour. Includes field notes that summarize descriptions of behaviours. Not often used in psychological research.
What are checklists?
The simplest structured technique of observation.
What are essential for checklists to work?
Clear operational definitions.
When are temporal measures used?
When the duration or time of a behaviour are of interest.
What is reaction time?
The most commonplace measure of latency; the time that elapses between the presentation of the stimulus and the participant’s response.
What is task completion time?
Another measure of latency; the length of time it takes participants to solve a problem/complete a task.
What is inter-behviour latency?
The time that elapses between the performance of two behaviours.
When are observational rating scales used?
When the quality or intensity of a behaviour is of interest.
What is an issue with observational rating scales?
They can contain a certain degree of subjectivity, so the operational definition must be unambiguous and clear.
What is inter-rater reliability?
The degree to which the observations of two or more independent raters or observers agree.
What is neuroscience?
A broad, interdisciplinary field that studies biochemical, anatomical, physiological, genetic, and developmental processes involving the nervous system.
What are the 5 psychophysiological measures?
Measures of electrical activity, neuroimaging, measures of autonomic nervous system activity, blood and saliva assays, and precise measurement of overt reactions.
What is an electroencephalogram (EEG)?
A test to measure brain waves.
What is an electromyograph (EMG)?
A test to measure electrical activities in the muscles and provide n index of physiological activity related to reactions involving muscular tension and movement.
What are the two basic types of neuroimaging?
Structural and functional.
What is structural neuroimaging used for?
To examine the physical structure of the brain. E.g., CAT scan, MRI.