PMID- 23286337
OWN - NLM
STAT- MEDLINE
DCOM- 20130628
LR  - 20211021
IS  - 1471-244X (Electronic)
IS  - 1471-244X (Linking)
VI  - 13
DP  - 2013 Jan 3
TI  - Measuring engagement in deliberate self-harm behaviours: psychometric evaluation 
      of six scales.
PG  - 4
LID - 10.1186/1471-244X-13-4 [doi]
AB  - BACKGROUND: Engagement in Deliberate Self-Harm (DSH) is commonly measured by 
      behavioural scales comprised of specific methods of self-harm. However, there is 
      a scarcity of information about the degree to which the methods relate to the 
      same DSH construct although such scales are routinely used to provide a DSH total 
      score. This study addresses the shortfall by evaluating the dimensionality of six 
      commonly used behavioural measures of DSH. METHODS: The DSH measures were 
      Self-Injury Questionnaire Treatment Related (SIQTR), Self-Injurious Thoughts and 
      Behaviors Interview (SITBI), Deliberate Self-Harm Inventory (DSHI), Inventory of 
      Statements About Self-Injury (ISAS), Self-Harm Information Form (SHIF) and 
      Self-Harm Inventory (SHI). The behavioural scales contained in each measure were 
      administered to 568 young Australians aged 18 to 30 years (62% university 
      students, 21% mental health patients, and 17% community members). Scale quality 
      was examined against the stringent standards for unidimensional measurement 
      provided by the Rasch model. RESULTS: According to the stringent post-hoc tests 
      provided by the Rasch measurement model, there is support for the 
      unidimensionality of the items contained within each of the scales. All six 
      scales contained items with differential item functioning, four scales contained 
      items with local response dependency, and one item was grossly misfitting (due to 
      a lack of discrimination). CONCLUSIONS: This study supports the use of 
      behavioural scales to measure a DSH construct, justifies the summing of items to 
      form a total DSH score, informs the hierarchy of DSH methods in each scale, and 
      extends the previous evidence for reliability and external validity (as provided 
      by test developers) to a more complete account of scale quality. Given the 
      overall adequacy of all six scales, clinicians and researchers are recommended to 
      select the scale that best matches their adopted definition of DSH.
FAU - Latimer, Shane
AU  - Latimer S
AD  - School of Social Sciences and Psychology, University of Western Sydney, Locked 
      Bag 1797, Penrith, NSW 2751, Australia.
FAU - Meade, Tanya
AU  - Meade T
FAU - Tennant, Alan
AU  - Tennant A
LA  - eng
PT  - Journal Article
DEP - 20130103
PL  - England
TA  - BMC Psychiatry
JT  - BMC psychiatry
JID - 100968559
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Female
MH  - Humans
MH  - Interview, Psychological
MH  - Male
MH  - *Psychiatric Status Rating Scales/standards/statistics & numerical data
MH  - Psychometrics
MH  - Reproducibility of Results
MH  - Self-Injurious Behavior/*diagnosis/psychology
MH  - Surveys and Questionnaires
MH  - Young Adult
PMC - PMC3605243
EDAT- 2013/01/05 06:00
MHDA- 2013/07/03 06:00
PMCR- 2013/01/03
CRDT- 2013/01/05 06:00
PHST- 2012/06/12 00:00 [received]
PHST- 2012/12/28 00:00 [accepted]
PHST- 2013/01/05 06:00 [entrez]
PHST- 2013/01/05 06:00 [pubmed]
PHST- 2013/07/03 06:00 [medline]
PHST- 2013/01/03 00:00 [pmc-release]
AID - 1471-244X-13-4 [pii]
AID - 10.1186/1471-244X-13-4 [doi]
PST - epublish
SO  - BMC Psychiatry. 2013 Jan 3;13:4. doi: 10.1186/1471-244X-13-4.