Sentence examples for items separation from inspiring English sources
The subscale anxiety problems, consisting of six items, represents three DSM-IV anxiety disorders: generalized anxiety disorder (three items), separation anxiety disorder (two items) and simple phobia (one item).
The four factor scales were empirically derived through principal components analysis and include Social Anxiety (9 items), Separation Anxiety (9 items), Harm Avoidance (9 items), and Physical Symptoms (12 items).
The four scales were empirically derived through principal components analysis and include: social anxiety (9 items), separation anxiety/panic (9 items), harm avoidance (9 items), and physical symptoms (12 items).
More specifically, it taps symptoms of panic disorder (13 items), generalised anxiety disorder (9 items), social phobia (9 items), separation anxiety disorder (12 items), obsessive-compulsive disorder (9 items), post-traumatic stress disorder (4 items), and specific phobia (15 items).
We applied separation indices to examine how well the respondents can be discriminated (person separation index) and by how well the items can be separated (item separation index) using questionnaires [ 18].
Regarding the underlying construct, the person separation index represents how well persons can be discriminated by the questionnaire and the item separation index represents how well the items can be separated by the questionnaire [ 34].
The person and item separation should be at least 2, indicating that the measure separated persons, items, or both into at least two distinct groups [ 15].
A person separation index of 2.0 indicates that the sample can be separated into at least three distinct groups [ 35], and an item separation index of 2.0 means that the items can be divided into three distinct levels of ability [ 36].
Item separation indexes were also satisfactory, confirming that the obtained item hierarchy was robustly estimated.
The item separation index was 3.58 (5.11 strata) with a reliability coefficient of.93.
The item separation index is 13.17 based on the empirical data or 13.37 based on the model expectations.
