Other studies reported only the reliability of combined items, making it difficult to tease apart findings and examine the reliability of items measuring different types of drug use or sexual behaviors.
The questionnaire includes 22 items measuring different aspects of burnout syndrome, including physical fatigue, emotional exhaustion, tension, listlessness and cognitive weariness as defined by Melamed and co-workers [15].
Most other instruments used for acute knee injury aggregate items measuring different aspects into one score.
Most other instruments used for knee functional status combined items measuring different aspects into one score.
The questionnaire includes 22 items measuring different aspects of the burnout syndrome, including physical fatigue, emotional exhaustion, tension, listlessness and cognitive weariness as defined by Melamed and coworkers.
The higher the reliability of a test the more likely it is that the test will yield a similar result when administered; by different raters (inter-rater reliability), by the same rater after some interval of time (intra-rater reliability), or in two halves (split-half reliability), and that items measuring different dimensions of the same phenomenon will be scored similarly (internal consistency).
The spread of the item means indicates that items are measuring different degrees of knee-related quality of life.
Additionally, the results of item-total correlation indicated these two items were measuring different psychological constructs.
The precision of the ADAS-CogIRT methodology is dependent on the amount of information contributed by the ADAS-Cog items for measuring different levels of cognitive impairment.
In addition, a second graph, the item information function, was generated to indicate the effectiveness of an item in measuring different levels of disability.
