{"id":{"repo_id":"east-anglia","oai_identifier":"oai:ueaeprints.uea.ac.uk:52602"},"canonical_url":"https://search.dev.ndltd.org/etd/east-anglia/oai:ueaeprints.uea.ac.uk:52602","repository":{"repo_id":"east-anglia","name":"University of East Anglia","base_url":"https://ueaeprints.uea.ac.uk/cgi/oai2"},"display":{"title":"Assessment of trauma symptomatology in adults with intellectual disabilities: validation of the Lancaster and Northgate Trauma Scales","abstract":"Background and Aims There is evidence that people with intellectual disabilities experience a higher rate of traumatic life events. However, attempts to research the presence of posttraumatic stress disorder (PTSD) symptomatology have been hampered by the absence of a validated and suitable assessment tool. The aim of this study, therefore, was to further examine the psychometric properties of a recently developed measure, the Lancaster and Northgate Trauma Scales (LANTS; Wigham, Hatton & Taylor, 2011b). Method Using a correlational design, 40 individuals (23 female, 17 male) with a mild intellectual disability (Mean FSIQ = 60.68; SD = 6.13) completed the LANTS and measures of anxiety and depression, along with a measure of general intellectual functioning. Two assessment tools developed for this study were also administered: the Impact of Events Scale – Intellectual Disabilities (IES-ID), a version of the Impact of Events Scale Revised (IES-R; Weiss & Marmar, 1997) adapted specifically for people with intellectual disabilities; and the Trauma Information Form (TIF) which is a selfreport assessment of trauma experiences in line with current DSM-IV-TR criteria (2000). Results Both trauma scales had high internal and test-retest reliability, although the IESID subscales were less reliable than the total severity score. Convergent validity was also good with the LANTS and IES-ID both positively correlated with each other, and iii measures of anxiety and depression. However, unlike the IES-ID, the LANTS failed to correlate with the number of traumas. No differences on trauma or demographic factors were found between a high and low PTSD group. Intellectual functioning was not related to the extent of trauma symptomatology. Conclusions The LANTS and IES-ID are promising trauma assessment tools, and therefore both may have clinical utility for the identification of PTSD symptomatology in people with intellectual disabilities. While the findings should be extended to a larger sample, they clearly provide a basis for more research into this under-researched but burgeoning area.","abstract_html":"Background and Aims There is evidence that people with intellectual disabilities experience a higher rate of traumatic life events. However, attempts to research the presence of posttraumatic stress disorder (PTSD) symptomatology have been hampered by the absence of a validated and suitable assessment tool. The aim of this study, therefore, was to further examine the psychometric properties of a recently developed measure, the Lancaster and Northgate Trauma Scales (LANTS; Wigham, Hatton & Taylor, 2011b). Method Using a correlational design, 40 individuals (23 female, 17 male) with a mild intellectual disability (Mean FSIQ = 60.68; SD = 6.13) completed the LANTS and measures of anxiety and depression, along with a measure of general intellectual functioning. Two assessment tools developed for this study were also administered: the Impact of Events Scale – Intellectual Disabilities (IES-ID), a version of the Impact of Events Scale Revised (IES-R; Weiss & Marmar, 1997) adapted specifically for people with intellectual disabilities; and the Trauma Information Form (TIF) which is a selfreport assessment of trauma experiences in line with current DSM-IV-TR criteria (2000). Results Both trauma scales had high internal and test-retest reliability, although the IESID subscales were less reliable than the total severity score. Convergent validity was also good with the LANTS and IES-ID both positively correlated with each other, and iii measures of anxiety and depression. However, unlike the IES-ID, the LANTS failed to correlate with the number of traumas. No differences on trauma or demographic factors were found between a high and low PTSD group. Intellectual functioning was not related to the extent of trauma symptomatology. Conclusions The LANTS and IES-ID are promising trauma assessment tools, and therefore both may have clinical utility for the identification of PTSD symptomatology in people with intellectual disabilities. While the findings should be extended to a larger sample, they clearly provide a basis for more research into this under-researched but burgeoning area.","abstract_has_math":false,"creators":["Hall, James C."],"institution":"University of East Anglia","degree_name":"other","degree_level":"doctoral","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2012,"date_issued":"2012-06","date_published":"2012-06","updated_at":"2026-07-24T02:12:08Z","subjects":[],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Hall, James C."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2012-06"]},{"key":"dc:date.issued","label":"Date","values":["2012-06"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Norwich Medical School"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["University of East Anglia"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["https://ueaeprints.uea.ac.uk/id/eprint/52602/"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["doctoral"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["other"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://ueaeprints.uea.ac.uk/id/eprint/52602/1/2012HallJCClinPsyD.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Background and Aims There is evidence that people with intellectual disabilities experience a higher rate of traumatic life events. However, attempts to research the presence of posttraumatic stress disorder (PTSD) symptomatology have been hampered by the absence of a validated and suitable assessment tool. The aim of this study, therefore, was to further examine the psychometric properties of a recently developed measure, the Lancaster and Northgate Trauma Scales (LANTS; Wigham, Hatton & Taylor, 2011b). Method Using a correlational design, 40 individuals (23 female, 17 male) with a mild intellectual disability (Mean FSIQ = 60.68; SD = 6.13) completed the LANTS and measures of anxiety and depression, along with a measure of general intellectual functioning. Two assessment tools developed for this study were also administered: the Impact of Events Scale – Intellectual Disabilities (IES-ID), a version of the Impact of Events Scale Revised (IES-R; Weiss & Marmar, 1997) adapted specifically for people with intellectual disabilities; and the Trauma Information Form (TIF) which is a selfreport assessment of trauma experiences in line with current DSM-IV-TR criteria (2000). Results Both trauma scales had high internal and test-retest reliability, although the IESID subscales were less reliable than the total severity score. Convergent validity was also good with the LANTS and IES-ID both positively correlated with each other, and iii measures of anxiety and depression. However, unlike the IES-ID, the LANTS failed to correlate with the number of traumas. No differences on trauma or demographic factors were found between a high and low PTSD group. Intellectual functioning was not related to the extent of trauma symptomatology. Conclusions The LANTS and IES-ID are promising trauma assessment tools, and therefore both may have clinical utility for the identification of PTSD symptomatology in people with intellectual disabilities. While the findings should be extended to a larger sample, they clearly provide a basis for more research into this under-researched but burgeoning area."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Assessment of trauma symptomatology in adults with intellectual disabilities: validation of the Lancaster and Northgate Trauma Scales"]}]}],"canonical_facts":{"dc:creator":["Hall, James C."],"dc:date":["2012-06"],"dc:date.issued":["2012-06"],"dc:description.abstract":["Background and Aims There is evidence that people with intellectual disabilities experience a higher rate of traumatic life events. However, attempts to research the presence of posttraumatic stress disorder (PTSD) symptomatology have been hampered by the absence of a validated and suitable assessment tool. The aim of this study, therefore, was to further examine the psychometric properties of a recently developed measure, the Lancaster and Northgate Trauma Scales (LANTS; Wigham, Hatton & Taylor, 2011b). Method Using a correlational design, 40 individuals (23 female, 17 male) with a mild intellectual disability (Mean FSIQ = 60.68; SD = 6.13) completed the LANTS and measures of anxiety and depression, along with a measure of general intellectual functioning. Two assessment tools developed for this study were also administered: the Impact of Events Scale – Intellectual Disabilities (IES-ID), a version of the Impact of Events Scale Revised (IES-R; Weiss & Marmar, 1997) adapted specifically for people with intellectual disabilities; and the Trauma Information Form (TIF) which is a selfreport assessment of trauma experiences in line with current DSM-IV-TR criteria (2000). Results Both trauma scales had high internal and test-retest reliability, although the IESID subscales were less reliable than the total severity score. Convergent validity was also good with the LANTS and IES-ID both positively correlated with each other, and iii measures of anxiety and depression. However, unlike the IES-ID, the LANTS failed to correlate with the number of traumas. No differences on trauma or demographic factors were found between a high and low PTSD group. Intellectual functioning was not related to the extent of trauma symptomatology. Conclusions The LANTS and IES-ID are promising trauma assessment tools, and therefore both may have clinical utility for the identification of PTSD symptomatology in people with intellectual disabilities. While the findings should be extended to a larger sample, they clearly provide a basis for more research into this under-researched but burgeoning area."],"dc:format":["application/pdf"],"dc:identifier.uri":["https://ueaeprints.uea.ac.uk/id/eprint/52602/1/2012HallJCClinPsyD.pdf"],"dc:language":["en"],"dc:publisher.department":["Norwich Medical School"],"dc:publisher.institution":["University of East Anglia"],"dc:relation.isreferencedby":["https://ueaeprints.uea.ac.uk/id/eprint/52602/"],"dc:title":["Assessment of trauma symptomatology in adults with intellectual disabilities: validation of the Lancaster and Northgate Trauma Scales"],"dc:type":["Thesis"],"dc:type.qualificationlevel":["doctoral"],"dc:type.qualificationname":["other"]},"updated_at":"2026-07-24T02:12:08Z"}