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Hobbs, Megan
- PublicationPsychometric Comparability of Self-Report by Children Aged 9–10 versus 11 Years on the Strengths and Difficulties Questionnaire (SDQ)The 25-item Strengths and Difficulties Questionnaire (SDQ) is a popular screening instrument that assesses childhood psychopathology and prosocial behaviour. While the value of acquiring multi-informant perspectives in the assessment of childhood psychopathology is recognised, the use of the self-report version of the questionnaire is recommended only for children aged 11 years and older. This study aimed to evaluate the psychometric comparability of self-report on the SDQ by children aged 9–10 years relative to children aged 11 years using item response modelling. Item response models were used in a community sample of 7959 children to investigate the structure, item characteristics, and age differences related to self-report by children aged 9–10 years (n=6004), relative to children aged 11 years (n=1955), on the SDQ. Internalizing, externalizing, and prosocial factors explained the covariance of the questionnaire items. There were statistically significant age-related differences on only two items (the “worries” and “distractible” items), but these differences were small in magnitude and did not affect the precision of measurement of the SDQ. Self-report by children aged 9 and 10 years on the SDQ is psychometrically comparable to reports by children aged 11 years after controlling for differences in latent severity. This work expands the utility of the self-report SDQ to children aged as young as 9 years.
- PublicationThe Relationship Between CBT-Mindedness and iCBT Outcomes Amongst a Large Adult Sample(Springer New York LLC, 2022-08)
;McLellan, Lauren F; ;Peters, Lorna ;Millard, MichaelMahoney, Alison E JBackground Predicting response to cognitive behavior therapy (CBT) assists efforts to enhance treatment outcome when predictive factors are modifiable prior to, or during, treatment. The extent to which clients hold beliefs and attitudes consistent with CBT (termed CBT-mindedness) is a relatively new concept with research suggesting it predicts response to CBT amongst small samples of adults with anxiety. This study aimed to investigate CBT-mindedness amongst a larger clinical population receiving internet-delivered CBT (iCBT).
Method 1132 adults with anxiety, depression or mixed anxiety and depression who accessed iCBT with or without therapist support via the THIS WAY UP clinic completed a brief self-report measure of CBT-mindedness along with measures of distress, anxiety, and depression. Measures were completed pre- and post-treatment.
Results The 3-factor structure of the CBT Suitability Scale (CBT-SUITS) was confirmed and scores were unrelated or very weakly related to symptoms/distress. CBT-mindedness increased amongst treatment completers. CBT-mindedness predicted post-treatment distress (but not symptoms), and change in CBT-mindedness predicted lower post-treatment symptoms and distress.
Conclusions The CBT-SUITS represents a psychometrically sound measure of CBT-mindedness. Results amongst this large sample of adults accessing iCBT in a community service indicate that CBT-mindedness (or CBT-mindedness change) is an important predictor of therapy response.
- PublicationGeneral practitioners’ perspectives on the management of refugee health: a qualitative study
Objective To explore general practitioners’ (GPs) perceptions of the challenges and facilitators to managing refugee healthcare needs in regional Australia.
Setting A regional community in Australia involved in the resettlement of refugees.
Participants Nine GPs from five practices in the region.
Design A qualitative study based on semistructured interviews conducted between September and November 2020.
Results The main challenges identified surrounded language and communication difficulties, cultural differences and health literacy and regional workforce shortages. The main facilitators were clinical and community supports, including refugee health nurses and trauma counselling services. Personal benefits experienced by GPs such as positive relationships, satisfaction and broadening scope of practice further facilitated ongoing healthcare provision.
Conclusions Overall, GPs were generally positive about providing care to refugees. However, significant challenges were expressed, particularly surrounding language, culture and resources. These barriers were compounded by the regional location. This highlights the need for preplanning and consultation with healthcare providers in the community both prior to and during the settlement of refugees as well as ongoing support proportional to the increase in settlement numbers.
- PublicationComparing Scores From Full Length, Short Form, and Adaptive Tests of the Social Interaction Anxiety and Social Phobia Scales(Sage Publications, Inc, 2020-04-01)
;Sunderland, Matthew ;Afzali, Mohammad H ;Batterham, Philip J ;Calear, Alison L ;Carragher, Natacha; ;Mahoney, Alison ;Peters, LornaSlade, TimThe current study developed and examined the performance of a computerized adaptive version of the Social Interaction Anxiety and Social Phobia Scales (SIAS/SPS) and compared results with a previously developed static short form (SIAS-6/SPS-6) in terms of measurement precision, concordance with the full forms, and sensitivity to treatment. Among an online sample of Australian adults, there were relatively minor differences in the performance of the adaptive tests and static short forms when compared with the full scales. Moreover, both adaptive and static short forms generated similar effect sizes across treatment in a clinical sample. This provides further evidence for the use of static or adaptive short forms of the SIAS/SPS rather than the lengthier 20-item versions. However, at the individual level, the adaptive tests were able to maintain an acceptable level of precision, using few items as possible, across the severity continua in contrast to the static short forms. - PublicationTranslating evidence-based psychological interventions for older adults with depression and anxiety into public and private mental health settings using a stepped care framework: Study protocol(Elsevier Inc, 2021-05)
;Meuldijk, Denise ;Wuthrich, Viviana M ;Rapee, Ronald M ;Draper, Brian ;Brodaty, Henry ;Cuijpers, Pim ;Cutler, Henry; ;Johnco, Carly ;Jones, Michael ;Chen, Jessamine T H ;Partington, AndrewWijeratne, ChanakaBackground: With expected increases in the number of older adults worldwide, the delivery of stepped psychological care for depression and anxiety in older populations may improve both treatment and allocative efficiency for individual patients and the health system.
Design: A multisite pragmatic randomised controlled trial evaluating the clinical and cost-effectiveness of a stepped care model of care for treating depression and anxiety among older adults compared to treatment as usual (TAU) will be conducted. Eligible participants (n = 666) with clinically interfering anxiety and/or depression symptoms will be recruited from and treated within six Australian mental health services. The intervention group will complete a low intensity cognitive behavioural therapy (CBT) program: Internet-delivered or using a work-at-home book with brief therapist calls (STEP 1). Following STEP 1 a higher intensity face-to-face CBT (STEP 2) will then be offered if needed. Intention-to-treat analyses will be used to examine changes in primary outcomes (e.g. clinician-rated symptom severity changes) and secondary outcomes (e.g. self-reported symptoms severity, health related quality of life and service utilisation costs). An economic evaluation will be conducted using a cost-utility analysis to derive the incremental cost-effectiveness ratio for the stepped care intervention.
Discussion: This study will demonstrate the relative clinical and economic benefits of stepped care model of psychological care for older adults experiencing anxiety and/or depression compared to TAU. The evaluation of the intervention within existing mental health services means that results will have significant implications for the translation of evidence-based interventions in older adult services across urban and rural settings.
Trail registration: Prospectively registered on anzctr.org.au (ACTRN12619000219189) and isrctn.com (ISRCTN37503850). - PublicationThe effectiveness of internet-delivered cognitive behavioural therapy for health anxiety in routine care(Elsevier BV, 2020-03-01)
;Newby, Jill M ;Haskelberg, Hila; ;Mahoney, Alison E J ;Mason, ElizabethAndrews, GavinIntroduction: Randomised controlled trials have shown that internet-delivered cognitive behavioural treatment (iCBT) is an effective treatment for health anxiety, but the effectiveness of these programs in routine care has not been investigated. This study examined the effectiveness of iCBT for health anxiety symptoms in routine care settings in the community. Methods: Using an open-trial design, we investigated adherence to, and effectiveness of a 6-lesson iCBT program for health anxiety symptoms amongst individuals (n=391, mean age 41 years, 64% female) who enrolled in the program either self-guided (n=312) or under the supervision of community clinicians (general practitioners, psychologists and other allied health professionals) (n=79). Primary outcome was health anxiety severity on the Short Health Anxiety Inventory (SHAI), and secondary outcomes were depression severity on the Patient Health Questionnaire 9-item (PHQ-9) (depression) and distress (Kessler-10: K-10). Results: Adherence to the iCBT program was modest (45.6% in the clinician-supervised group, 33.0% in the unguided group), but within-subjects effect sizes were large (SHAI: g=1.66, 95%CI: 1.45–1.88; PHQ-9: g=1.12, 95%CI: 0.92–1.32; K-10: g=1.35, 95%CI: 1.15–1.56). Limitations: No control group, lack of follow-up data. Conclusions: iCBT is an effective treatment for health anxiety symptoms in routine care, but methods to increase adherence are needed to optimise benefits to participants. Randomised controlled effectiveness trials with long-term follow-up are needed. - PublicationQ Fever awareness and risk profiles among agricultural show attendees(John Wiley & Sons, Inc, 2022-10)
; ; ;Eastwood, Keith; ; ; Objective: To assess awareness and risk of Q fever among agricultural show attendees.
Setting: University of New England's Farm of the Future Pavilion, 2019, Sydney Royal Agricultural Show.
Participants: Participants were ≥18 years, fluent in English, Australian residents, and gave their informed consent.
Main Outcome Measures: Participants reported whether they had ever heard of Q fever and then completed the ‘Q Tool’ (www.qfevertool.com), which was used to assess participants' demographics and risk profiles. Cross-tabulations and logistic regression analyses were used to examine the relationship between these factors.
Results: A total of 344 participants were recruited who, in general, lived in major NSW cities and were aged 40–59 years. 62% were aware of Q fever. Living in regional/remote areas and regular contact with livestock, farms, abattoirs and/or feedlots increased the likelihood of Q fever awareness. Direct or indirect contact with feral animals was not associated with Q fever awareness after controlling for the latter risk factors. 40% of participants had a high, 21% a medium, and 30% a low risk of exposure. Slightly less than 10% reported a likely existing immunity or vaccination against Q fever. Among those who were not immune, living in a regional or remote area and Q fever awareness were independently associated with increased likelihood of exposure.
Conclusions: Awareness of Q fever was relatively high. Although 61% of participants had a moderate to high risk of exposure to Q fever, they had not been vaccinated. This highlights the need to explore barriers to vaccination including accessibility of providers and associated cost.
- PublicationSelf-guided online cognitive behavioural therapy for insomnia: A naturalistic evaluation in patients with potential psychiatric comorbiditiesBackground: Insomnia is the most prevalent sleep disorder worldwide, and regularly co-occurs with anxiety and depression. Cognitive behavioural therapy is the gold standard treatment for insomnia (CBT-I), however demand for treatment providers drastically exceeds supply. Internet-delivered programs for insomnia (iCBT-I) improve treatment access. However the effects of unguided iCBT-I for individuals with comorbidities within a naturalistic setting remains unexplored. We developed a novel unguided iCBT-I program and evaluated its impact on insomnia, psychological distress, and wellbeing when accessed by the public. Methods: 317 participants experiencing insomnia for over 3 months enrolled in the program. The program consisted of 4 lessons delivered online with automated web support. Insomnia symptoms, psychological distress, and general wellbeing were assessed at lesson 1 and 4. Intention-to-treat linear mixed models were used to examine effects on insomnia, distress, and wellbeing. Results: Participants experienced large (g = 1.11) and significant reductions in insomnia, moderate (g = 0.55) and significant reductions in distress, and small (g = 0.37) but significant improvements in wellbeing. 65% of participants who reported pre-treatment insomnia severity at clinical levels remitted following treatment. Limitations: To examine the program in a naturalistic setting, we did not employ a control group or follow participants beyond the completion of treatment. Conclusions: Unguided iCBT-I is effective for individuals in the community who experience insomnia and are likely experiencing comorbid mental health problems. These effects in the absence of guided contact strengthen the utility of unguided iCBT-I as a scalable and cost-effective method of disseminating treatments for this disorder.
- PublicationItem Response Theory Analysis of the Big Five Questionnaire for Children–Short Form (BFC-SF): A Self-Report Measure of Personality in Children Aged 11–12 Years(Guilford Publications, Inc, 2020-02)
;Bore, Miles ;Laurens, Kristin R; ;Green, Melissa J ;Tzoumakis, Stacy ;Harris, FelicityCarr, Vaughan JPrior investigations indicate that the five core personality dimensions (the “Big Five”) are measurable by middle childhood. The aim of this research was to examine the psychometric properties of a short-form self-report measure of the Big Five personality dimensions in children that would be suitable for administration online in large population-based studies. Twenty-five questionnaire items in English, derived from the 65-item Big Five Questionnaire for Children in Italian (Barbaranelli, Caprara, Rabasca, & Pastorelli, 2003), were completed online by 27,415 Australian children in Year 6 (mean age 11.92 years). An item response theory approach evaluated the psychometric properties and resolved a 20-item short-form questionnaire. Exploratory and confirmatory factor analyses supported the Big Five structure. Construct validity was demonstrated via correlations between Big Five scores and the Strengths and Difficulties Questionnaire subscales (Goodman, 2001). The 20 items provide a brief, reliable, and valid child self-report measure of the Big Five personality dimensions. - PublicationCOVID-19 related differences in the uptake and effects of internet-based cognitive behavioural therapy for symptoms of obsessive-compulsive disorder(Cambridge University Press, 2022)
;Li, Ian ;Millard, Michael ;Haskelberg, Hila; ;Luu, JohnMahoney, AlisonBackground: The impacts of COVID-19 for people with obsessive-compulsive disorder (OCD) may be considerable. Online cognitive behavioural therapy (iCBT) programmes provide scalable access to psychological interventions, although the effectiveness of iCBT for OCD during COVID-19 has not been evaluated.
Aim: This study investigated the uptake and effectiveness of iCBT for OCD (both self- and clinicianguided courses) during the first 8 months of the pandemic in Australia (March to October 2020) and compared outcomes with the previous year.
Method: 1,343 adults (824/1343 (61.4%) female, mean age 33.54 years, SD = 12.00) commenced iCBT for OCD (1061 during the pandemic and 282 in the year before) and completed measures of OCD (Dimensional Obsessive-Compulsive Scale) and depression (Patient Health Questionaire-9) symptom severity, psychological distress (Kessler-10), and disability (WHO Disability Assessment Schedule) preand post-treatment.
Results: During COVID-19, there was a 522% increase in monthly course registrations compared with the previous year, with peak uptake observed between April and June 2020 (a 1191% increase compared with April to June 2019). OCD and depression symptom severity were similar for the COVID and pre-COVID groups, although COVID-19 participants were more likely to enrol in self-guided courses (versus clinicianguided). In both pre- and during-COVID groups, the OCD iCBT course was associated with medium effect size reductions in OCD (g = 0.65–0.68) and depression symptom severity (g = 0.56–0.65), medium to large reductions in psychological distress (g = 0.77–0.83) and small reductions in disability (g = 0.35–.50).
Conclusion: Results demonstrate the considerable uptake of online psychological services for those experiencing symptoms of OCD during COVID-19 and highlight the scalability of effective digital mental health services.