| 1. |
- Hansson, Sara Lina, et al.
(författare)
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The Autism--Tics, AD/HD and other Comorbidities (A-TAC) telephone interview: convergence with the Child Behavior Checklist (CBCL).
- 2010
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Ingår i: Nordic Journal of Psychiatry. - : Informa UK Limited. - 0803-9488 .- 1502-4725. ; 64:3, s. 218-224
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To compare telephone interview screening for child psychiatric/neuropsychiatric disorders using the inventory of Autism-Tics, Attention deficit/hyperactivity disorder (AD/HD) and other Comorbidities (A-TAC) with results from the Child Behavior Checklist (CBCL). Background: The A-TAC is a parent telephone interview focusing on autism spectrum disorders (ASDs) and co-existing problems, developed for lay interviewers. Subjects and methods: A-TAC telephone interviews and CBCL questionnaires were obtained from parents of 106 Swedish twin pairs aged 9 and 12 years. Results: Correlations between A-TAC modules and CBCL scales aimed at measuring similar concepts were generally significant albeit modest, with correlation coefficients ranging from 0.30 through 0.55. Conclusion: The A-TAC has convergent validity with the CBCL in several problem areas, but the A-TAC also provides more detailed and specific assessments of ASD symptoms and related neuropsychiatric problems.
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| 2. |
- Kerekes, Nora, 1969, et al.
(författare)
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The Swedish version of the parent-rated Junior Temperament and Character Inventory (J-TCI).
- 2010
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Ingår i: Psychological reports. - 0033-2941. ; 107:3, s. 715-25
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Tidskriftsartikel (refereegranskat)abstract
- To evaluate the psychometric characteristics of the Swedish version of the Junior Temperament and Character Inventory (J-TCI), it was sent to parents of 9- and 12-yr.-old twins in Sweden. The final number of responders was 196 parents who rated 92 female and 104 male twin pairs. The inventory of one twin, randomly chosen from each pair, was included in the analyses. Reward Dependence, Persistence, and Cooperativeness were scored higher in girls; Novelty Seeking was higher in the 9-yr.-olds and Persistence in the 12-yr.-olds. Pearson's correlations showed that some dimensions were not statistically independent from each other, even if the covariance was moderate. Internal consistency (Cronbach's alpha) was satisfactory for Harm Avoidance, Novelty Seeking, Self-Directedness, and Cooperativeness (.68-.81), while it was lower in those dimensions that had fewer items. The Swedish parent version of the J-TCI shared about the same psychometric characteristics as found in international samples.
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| 3. |
- Larson, Tomas, 1967
(författare)
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A-TAC - The Autism-Tics, ADHD and other Comorbidities inventory: studies in reliability and validity
- 2013
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Introduction: Reliable, valid, and easy-to-administer instruments to identify possible “caseness” and to provide proxies for clinical diagnoses are needed in epidemiological research on child and adolescent mental health. The Autism–Tics, ADHD and other Comorbidities (A-TAC) inventory was developed to be used as a comprehensive interview to evaluate neurodevelopmental problems (NDPs), e.g. autism spectrum disorders (ASDs) and attention deficit hyperactivity disorder (ADHD), and coexisting disorders in childhood and adolescence. Aims & Methods: The overall aim of this study was to present basic reliability and validity data on the A-TAC and to investigate its screening application in epidemiological and clinical studies. Specific aims were to determine: (1) the A-TAC’s test–retest reliability; (2) the psychometric properties and establish optimal cut-off values for NDP modules of the A-TAC in order to differentiate between clinically diagnosed children and others; (3) the A-TAC’s convergent validity with the Child Behavior Checklist (CBCL); (4) its diagnostic predictive screening properties in a population-based cohort; and (5) to establish basic prevalence figures for NDPs and provide an overview of the comorbidity, distribution and intercorrelation of these problems with the A-TAC. Results: There were good test–retest intraclass correlations for both ASDs and ADHD (intraclass correlation coefficient (ICC) 0.84 for both). Areas under receiver operating characteristic curves (AUCs) for interview scores were excellent predictors of clinical diagnoses, around 0.95 for most disorders. Screening cut-off scores with sensitivities >0.90 could be established for most conditions. The A-TAC has overall convergent validity with the CBCL, and works well as a predictive assessment tool in the general population, with AUCs from 0.77 (ADHD) to 0.91 (ASDs). Finally, NDPs are dimensionally distributed in the general population, with a total of 16% being screen-positive for one or several of the targeted disorders (1.3% for ASDs and 5.6% for ADHD). Conclusions: The A-TAC inventory is a reasonably reliable and valid tool even when administered by lay persons over the telephone, yielding both sensitive screening measures and proxies for clinical diagnoses. The A-TAC has a particularly good ability to assess features and problems in the ASDs and their most common comorbid conditions.
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| 4. |
- Larson, Tomas, 1967, et al.
(författare)
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Reliability of the Autism - Tics, ADHD and other Comorbidities inventory (A-TAC) in a test-retest design
- 2014
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Ingår i: Psychological Reports. - 0033-2941. ; 114, s. 93-103
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Tidskriftsartikel (refereegranskat)abstract
- Summary .— The Autism–Tics, AD/HD, and other Comorbidities (A-TAC) inventory is used in epidemiological research to assess neurodevelopmental problems and coexisting conditions. Although the A-TAC has been applied in various populations, data on retest reliability are limited. The objective of the present study was to present additional reliability data. The A-TAC was administered by lay assessors and was completed on two occasions by parents of 400 individual twins, with an average interval of 70 days between test sessions. Intra- and inter-rater reliability were analysed with intraclass correlations and Cohen's !. A-TAC showed excellent test-retest intraclass correlations for both autism spectrum disorder and attention-defcit hyperactivity disorder (each at .84). Most modules in the A-TAC had intra and inter-rater reliability intraclass correlation coeffcients of # .60. Cohen's k indicated acceptable reliability. The current study provides statistical evidence that the A-TAC yields good test-retest reliability in a population-based cohort of children.
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| 5. |
- Larson, Tomas, 1967, et al.
(författare)
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The autism--tics, AD/HD and other comorbidities inventory (A-TAC): further validation of a telephone interview for epidemiological research.
- 2010
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Ingår i: BMC Psychiatry. - 1471-244X. ; 10
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Tidskriftsartikel (refereegranskat)abstract
- ABSTRACT: BACKGROUND: Reliable, valid, and easy-to-administer instruments to identify possible caseness and to provide proxies for clinical diagnoses are needed in epidemiological research on child and adolescent mental health.The aim of this study is to provide further validity data for a parent telephone interview focused on Autism - Tics, Attention-deficit/hyperactivity disorder (AD/HD), and other Comorbidities (A-TAC), for which reliability and preliminary validation data have been previously reported. METHODS: Parents of 91 children clinically diagnosed at a specialized Child Neuropsychiatric Clinic, 366 control children and 319 children for whom clinical diagnoses had been previously assigned were interviewed by the A-TAC over the phone. Interviewers were blind to clinical information. Different scores from the A-TAC were compared to the diagnostic outcome. RESULTS: Areas under ROC curves for interview scores as predictors of clinical diagnoses were around 0.95 for most disorders, including autism spectrum disorders (ASDs), attention deficit/hyperactivity disorder (AD/HD), tic disorders, developmental coordination disorders (DCD) and learning disorders, indicating excellent screening properties. Screening cut-off scores with sensitivities above 0.90 (0.95 for ASD and AD/HD) were established for most conditions, as well as cut-off scores to identify proxies to clinical diagnoses with specificities above 0.90 (0.95 for ASD and AD/HD). CONCLUSIONS: The previously reported validity of the A-TAC was supported by this larger replication study using broader scales from the A-TAC-items and a larger number of diagnostic categories. Short versions of algorithms worked as well as larger. Different cut-off levels for screening versus identifying proxies for clinical diagnoses are warranted. Data on the validity for mood problems and oppositional defiant/conduct problems are still lacking. Although the A-TAC is principally intended for epidemiological research and general investigations, the instrument may be useful as a tool to collect information in clinical practice as well.
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