Page 62 - Post-traumatic stress disorder in adults with mild intellectual disability: Screening, assessment, and brief intensive EMDR therapy

Chapter 3
‘people from the living group’. Three phrases were simplified, such as ‘Left
alone for a long time or with other children without an adult around’, which
has been changed to ‘Left alone for a long time without an adult around’.
The instructions for scoring the questions in part two were also clarified.
Regarding section three, the same adjustments were made as in the TS-ID
adult version (see above). The TS-ID proxy version was piloted with two
professional caregivers and four parents of adults with MID-BIF, in which
also the ‘think aloud’ method was applied. No further changes were made
to the TS-ID proxy version after pilot testing.
Trauma Screener-Intellectual Disability
There are two versions of the TS-ID, a self-report version (TS-ID-adult
version) and a proxy version. The two versions of the TS-ID are identical in
content but differ in phrasing. The adult version is completed by the client,
while the proxy version is completed by a person who has regular contact
with the person with MID-BIF. Both the TS-ID adult version and TS-ID proxy
version contains three sections, with response options identical to those of
the KJTS. The first section of the TS-ID adult version and the TS-ID proxy
version consists of 22 and 23 events, respectively, in which a wide variety
of events are questioned: not only events that meet the A criterion but
also other negative life events. The proxy version of the TS-ID includes the
following additional event: ‘You have heard that the person for whom you
are completing this list, has been touched unwanted, but he/she denies it’.
Section two of both versions of the TS-ID consists of 20 PTSD symptoms
corresponding to the DSM-5-TR symptom criteria (cluster B: items 1–5,
cluster C: items 6–7, cluster D: items 8–14 and cluster E: items 15–20). The
total symptom frequency score (range: 0–60) can be obtained by summing
the scores of the 20 questions, in which questions 9, 10 and 15 are divided
into several sub-questions. For the latter questions, only the highest score
is recorded in the final score. The third section of both versions of the TS-ID
contains five questions about the impact of symptoms on daily functioning
with response options: ‘Yes’ or ‘No’.
Diagnostic Interview Trauma and Stressors-Intellectual Disability
The DITS-ID (Mevissen et al., 2018) is a clinical interview in which a PTSD
diagnosis can be established in adults with MID-BIF, based on the DSM-5
60