Domain: Psychosocial screener, subscales for internalizing, externalizing, and attention; time to administer/score
Number of Items: 35 item original, 17 item short versions
Time to Administer: < 5 minutes
Age Range: 3 to 17; Self (11-17)
Cost/Copyright/Permission: $0
Informant: Caregiver; self
Exclusions (e.g. low-functioning, literacy level): Also a pictoral (picture) version available for low literacy
Format (e.g. paper, online, keyed into EHR): Paper, online - EPIC or CHADIS
Availability in Other Languages: Available in 24+ languages
Scoring: Each item on the PSC receives zero, one or two points, with the scores on all 35 items summed for the total score. The recommended cutoff to indicate a possible problem is based on a large national sample in the U.S., where a score of 28+ identifies about 12% of children as being at risk (Jellinek et al., 1999; Murphy et al., 2016). Other studies support different cut-off points for other patient populations (eg.,Ishizaki, et al., 2000).
Cutoffs Established: The recommended cutoff to indicate a possible problem is based on a large national sample in the U.S., where a score of 28+ identifies about 12% of children as being at risk (Jellinek et al., 1999; Murphy et al., 2016). Other studies support different cut-off points for other patient populations (eg.,Ishizaki, et al., 2000).
Use in Epilepsy Populations: 17 item validated in epilepsy
Use in Medical Populations: Longer version used in neurology
Use in Diverse Populations: n/a
Used Longitudinally/Response to Treatment: Although PSC scores vary somewhat over a few weeks to a year (Murphy, et al. 2016), the positive/negative screening scores for most patients remain the same (Hacker et al., 2009). The statistical concepts of "reliable change" and "significant change" provide parameters for judging the importance of any changes observed over time.
Includes a Suicidality Question: No
Other Useful Information: A change score of six or greater on the total score is considered a reliable change, and changes this large that also involve a change from risk to non-risk (or vice versa) are considered to indicate clinically significant change (Murphy, et al., 2016). On the subscales, only changes of two or more points are considered to indicate reliable change (Kamin, et al., 2015; McCarthy, et al., 2016), and only those that show a change in risk status are considered to show significant change.
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