First, an item analysis was carried out on the initial versions, with a close inspection of the distribution of each item to detect any floor or ceiling effect, or any item redundancy.
This study investigated the discriminatory properties of the Pittsburgh Sleep Quality Index (Pittsburgh questionnaire), Insomnia Severity Index (Insomnia index), Epworth Sleepiness Scale (Epworth scale) and the sleep item of the Roland and Morris Disability Questionnaire (Roland item) to detect insomnia in patients with LBP by comparing their accuracy to detect insomnia to a sleep diary.
ShopMiner [6] harnesses the distinct yet stable patterns of phase in the time series when customers move their desired items to detect comprehensive shopping behaviors.
A limitatioNoof thitemsudy is toe inability to account for social detectbility, a concern for social research pertaining to sensitive topics, such as mental illness.
Further our 20 item tool may not have enough diversity in dietary items to detect differences in overall diet quality between weight status categories.
These 25 items enabled to measure different aspects of anxiety impairment, namely, 6 items to assess incapacity, 4 items to detect worry, 5 items to measure others view, 7 items for self-image and 3 items to estimate future security.
To evaluate the ability of items to detect gradations in expertise, the authors enlisted the participation of 320 students enrolled in an introductory biology sequence.
The PDMS includes two independent scales to evaluate gross and fine motor development in children: the gross motor evaluation scale comprises 151 items to detect reflexes, equilibrium, acquirement and release, stationary and locomotion; the fine motor evaluation scales comprise 98 items to evaluate grasping, use of hands, visual-motor integration and object manipulation [ 9, 18].
Our analysis was based, however, on dimensional data to identify the relevant symptom domains across the population as a whole and there was sufficiently high endorsement of constituent items to detect coherent individual factors as proposed in the formulation of C-PTSD.
In Canada, a multidisciplinary team of health professionals developed an evidenced-based prenatal risk assessment program in order to identify and manage women and families in psychosocial risk using the Antenatal Psychosocial Health Assessment (ALPHA-Form) that uses 35 items to detect 15 risk factors for postnatal adverse psychosocial outcomes [ 50].
The analyses were realized using Item Response Theory and, particularly, Differential Item Functioning to detect differences between PBA and CBA at the item level.
