Christopher J. Mushquash

SPSS and SAS programs for generalizability theory analyses.

The identification and reduction of measurement errors is a major challenge in psychological testing. Most investigators rely solely on classical test theory for assessing reliability, whereas most experts have long recommended using generalizability theory instead. One reason for the common neglect of generalizability theory is the absence of analytic facilities for this purpose in popular statistical software packages. This article provides a brief introduction to generalizability theory, describes easy to use SPSS, SAS, and MATLAB programs for conducting the recommended analyses, and provides an illustrative example, using data (N= 329) for the Rosenberg Self-Esteem Scale. Program output includes variance components, relative and absolute errors and generalizability coefficients, coefficients for D studies, and graphs of D study results.

Cultural interventions to treat addictions in Indigenous populations: findings from a scoping study

BackgroundCultural interventions offer the hope and promise of healing from addictions for Indigenous people.a However, there are few published studies specifically examining the type and impact of these interventions. Positioned within the Honouring Our Strengths: Culture as Intervention project, a scoping study was conducted to describe what is known about the characteristics of culture-based programs and to examine the outcomes collected and effects of these interventions on wellness.MethodsThis review followed established methods for scoping studies, including a final stage of consultation with stakeholders. The data search and extraction were also guided by the “PICO” (Patient/population, Intervention, Comparison, and Outcome) method, for which we defined each element, but did not require direct comparisons between treatment and control groups. Twelve databases from the scientific literature and 13 databases from the grey literature were searched up to October 26, 2012.ResultsThe search strategy yielded 4,518 articles. Nineteen studies were included from the United States (58%) and Canada (42%), that involved residential programs (58%), and all (100%) integrated Western and culture-based treatment services. Seventeen types of cultural interventions were found, with sweat lodge ceremonies the most commonly (68%) enacted. Study samples ranged from 11 to 2,685 clients. Just over half of studies involved quasi-experimental designs (53%). Most articles (90%) measured physical wellness, with fewer (37%) examining spiritual health. Results show benefits in all areas of wellness, particularly by reducing or eliminating substance use problems in 74% of studies.ConclusionsEvidence from this scoping study suggests that the culture-based interventions used in addictions treatment for Indigenous people are beneficial to help improve client functioning in all areas of wellness. There is a need for well-designed studies to address the question of best relational or contextual fit of cultural practices given a particular place, time, and population group. Addiction researchers and treatment providers are encouraged to work together to make further inroads into expanding the study of culture-based interventions from multiple perspectives and locations.

Depressive symptoms are a vulnerability factor for heavy episodic drinking: A short-term, four-wave longitudinal study of undergraduate women

Heavy episodic drinking is increasingly common among undergraduate women. Cross-sectional research suggests that depressive symptoms and heavy episodic drinking are related. Nonetheless, surprisingly little is known about whether depressive symptoms are an antecedent of heavy episodic drinking, a consequence of heavy episodic drinking, or both. Such knowledge is essential to the accurate conceptualization of heavy episodic drinking, depressive symptoms, and their interrelations. In the present short-term longitudinal study, depressive symptoms and heavy episodic drinking were proposed to reciprocally influence each other over time, with depressive symptoms predicting changes in heavy episodic drinking over 1 week and vice versa. This reciprocal relations model was tested in 200 undergraduate women using a 4-wave, 4-week longitudinal design. Structural equation modeling was used to conduct cross-lagged analyses testing reciprocal relations between depressive symptoms and heavy episodic drinking. Consistent with hypotheses, both depressive symptoms and heavy episodic drinking were temporally stable, and depressive symptoms predicted changes in heavy episodic drinking over 1 week. Contrary to hypotheses, heavy episodic drinking did not predict changes in depressive symptoms over 1 week. Results are consistent with a vulnerability model suggesting depressive symptoms leave undergraduate women vulnerable to heavy episodic drinking. For undergraduate women who are struggling with feelings of sadness, worthlessness, and hopelessness, heavy episodic drinking may provide a temporary yet maladaptive means of avoiding or alleviating depressive symptoms.

A youth suicide prevention plan for Canada: a systematic review of reviews

Objective: We conducted an expedited knowledge synthesis (EKS) to facilitate evidence-informed decision making concerning youth suicide prevention, specifically school-based strategies and nonschool-based interventions designed to prevent repeat attempts. Methods: Systematic review of review methods were applied. Inclusion criteria were as follows: systematic review or meta-analysis; prevention in youth 0 to 24 years; peer-reviewed English literature. Review quality was determined with AMSTAR (a measurement tool to assess systematic reviews). Nominal group methods quantified consensus on recommendations derived from the findings. Results: No included review addressing school-based prevention (n = 7) reported decreased suicide death rates based on randomized controlled trials (RCTs) or controlled cohort studies (CCSs), but reduced suicide attempts, suicidal ideation, and proxy measures of suicide risk were reported (based on RCTs and CCSs). Included reviews addressing prevention of repeat suicide attempts (n = 14) found the following: emergency department transition programs may reduce suicide deaths, hospitalizations, and treatment nonadherence (based on RCTs and CCSs); training primary care providers in depression treatment may reduce repeated attempts (based on one RCT); antidepressants may increase short-term suicide risk in some patients (based on RCTs and meta-analyses); this increase is offset by overall population-based reductions in suicide associated with antidepressant treatment of youth depression (based on observational studies); and prevention with psychosocial interventions requires further evaluation. No review addressed sex or gender differences systematically, Aboriginal youth as a special population, harm, or cost-effectiveness. Consensus on 6 recommendations ranged from 73% to 100%. Conclusions: Our EKS facilitates decision maker access to what is known about effective youth suicide prevention interventions. A national research-to-practice network that links researchers and decision makers is recommended to implement and evaluate promising interventions; to eliminate the use of ineffective or harmful interventions; and to clarify prevention intervention effects on death by suicide, suicide attempts, and suicidal ideation. Such a network could position Canada as a leader in youth suicide prevention.

Research as Cultural Renewal: Applying Two-Eyed Seeing in a Research Project about Cultural Interventions in First Nations Addictions Treatment.

This article explores the application of two-eyed seeing in the first year of a three-year study about the effectiveness of cultural interventions in First Nations alcohol and drug treatment in Canada. Two-eyed seeing is recognized by Canada’s major health research funder as a starting point for bringing together the strengths of Indigenous and Western ways of knowing. With the aim of developing a culture-based measurement tool, our team carried out an Indigenous-centred research process with our interpretation of two-eyed seeing as a guiding principle. This enabled us to engage in a decolonizing project that prioritized Indigenous methodologies and ways of knowing and knowledge alongside those of Western science. By concentrating on Indigenous governance in the research process, our project supported efforts at Indigenous cultural renewal. Two illustrations are offered, our team’s reconceptualization of Western derived understandings of data collection through Indigenous storytelling and our research grant timeframe with Indigenous knowledge gardening. This article contributes to the Indigenous research and policy literature which is lacking documentation about how Indigenous communities and research teams are benefitting from two-eyed seeing.

Personality Traits and Drinking Motives Predict Alcohol Misuse Among Canadian Aboriginal Youth

This study tested the association between personality traits (i.e., anxiety sensitivity, sensation seeking, impulsivity, and hopelessness; as measured by the Substance Use Risk Profile Scale (Woicik et al. in Addictive Behaviors 34:1042–1055, 2009)), drinking motives (i.e., enhancement, social, coping, and conformity; as measured by the Drinking Motives Questionnaire—Revised (Cooper in Psychological Assessment 6:117–128, 1994)), and problematic patterns of alcohol use in 191 Canadian Aboriginal youth. Confirmatory factor analyses provided support for a three-factor model of drinking motives. Hierarchical regression analyses demonstrated that personality traits independently predicted motives for alcohol use: anxiety sensitivity predicted conformity motivated drinking; sensation seeking and impulsivity predicted enhancement motivated drinking; and hopelessness predicted coping motivated drinking. In addition, personality traits and drinking motives predicted problematic patterns of alcohol misuse: sensation seeking, hopelessness, and enhancement motives predicted heavy episodic drinking, while all personality traits and all drinking motives (save conformity) predicted alcohol-related problems. These findings suggest that specific personality traits in Canadian Aboriginal youth can explain specific reasons for drinking and may represent appropriate targets for intervention.

Hopelessness and Excessive Drinking among Aboriginal Adolescents: The Mediating Roles of Depressive Symptoms and Drinking to Cope

Canadian Aboriginal youth show high rates of excessive drinking, hopelessness, and depressive symptoms. We propose that Aboriginal adolescents with higher levels of hopelessness are more susceptible to depressive symptoms, which in turn predispose them to drinking to cope—which ultimately puts them at risk for excessive drinking. Adolescent drinkers (n = 551; 52% boys; mean age = 15.9 years) from 10 Canadian schools completed a survey consisting of the substance use risk profile scale (hopelessness), the brief symptom inventory (depressive symptoms), the drinking motives questionnaire—revised (drinking to cope), and quantity, frequency, and binge measures of excessive drinking. Structural equation modeling demonstrated the excellent fit of a model linking hopelessness to excessive drinking indirectly via depressive symptoms and drinking to cope. Bootstrapping indicated that this indirect effect was significant. Both depressive symptoms and drinking to cope should be intervention targets to prevent/decrease excessive drinking among Aboriginal youth high in hopelessness.

A Four-Stage Method for Developing Early Interventions for Alcohol Among Aboriginal Adolescents

This paper details a four-stage methodology for developing early alcohol interventions for at-risk Aboriginal youth. Stage 1 was an integrative approach to Aboriginal education that upholds Aboriginal traditional wisdom supporting respectful relationships to the Creator, to the land and to each other. Stage 2 used quantitative methods to investigate associations between personality risk factors and risky drinking motives. Stage 3 used qualitative interviews to further understand the contexts and circumstances surrounding drinking behaviour within a larger cultural context. Stage 3 involved tailoring personality-matched, motive-specific brief interventions to meet at-risk adolescents’ needs. Stage 4 involved an efficacy test of the interventions. This novel methodology has significance for future program development to meet diverse social, cultural and health needs of at-risk adolescents.

The Rutgers Alcohol Problem Index (RAPI): A Comparison of Cut-Points in First Nations Mi'kmaq and Non-Aboriginal Adolescents in Rural Nova Scotia

Important to the assessment of adolescent alcohol misuse is examination of alcohol-related problems. However, most measurement tools have only been validated among Euro-American cultures. The present study assessed the ability of the Rutgers Alcohol Problem Index (RAPI) to identify problem drinkers among groups of First Nations Mi’kmaq and non-Aboriginal adolescents from rural Nova Scotia and compared cut-point scores across cultural groups. Receiver Operating Characteristic (ROC) curve analyses revealed that the RAPI adequately distinguished between problem and non-problem drinkers in both groups with similar levels of precision. Cut-points were lower for First Nations Mi’kmaq as compared to non-Aboriginal adolescents. Results support the use of the RAPI with First Nations Mi’kmaq and non-Aboriginal adolescents and suggest that cut-points may need to be lowered for use with First Nations Mi’kmaq adolescents. Findings highlight the need for empirical examination of the cross-cultural psychometric applicability of alcohol assessment tools and cut-points among First Nations adolescents.

A scoping study of cultural interventions to treat addictions in Indigenous populations: methods, strategies and insights from a Two-Eyed Seeing approach

BackgroundThis paper describes the methods, strategies and insights gained from a scoping study using a “Two-Eyed Seeing” approach. An evolving technique, Two-Eyed Seeing respects and integrates the strengths of Indigenous knowledge and Western sciences, often “weaving back and forth” between the two worldviews. The scoping study was used to inform a tool for measuring the impact of culturally based addictions treatment services on wellness in Indigenous populations. It formed part of a three-year study, Honouring Our Strengths: Indigenous Culture as Intervention in Addictions Treatment. The scoping study identified and mapped literature on cultural interventions in addictions treatment, and described the nature, extent and gaps in literature.MethodsUsing a Two-Eyed Seeing approach, we adapted, applied and enhanced a common framework of scoping studies. In the end stage of the scoping review process, an Ad Hoc Review Group, led by our project Elder, reviewed and interpreted Indigenous and Western understandings within the mapped information. Elements of the scoping study were joined with results from community focus groups with staff at treatment centres.ResultsTwo-Eyed Seeing contributed differently at each stage of the scoping study. In early stages, it clarified team expertise and potential contributions. At the mid-point, it influenced our shift from a systematic to a scoping review. Near the end, it incorporated Western and Indigenous knowledge to interpret and synthesize evidence from multiple sources.ConclusionsThis paper adds to the collective work on augmenting the methodology of scoping studies. Despite the challenges of a Two-Eyed Seeing approach, it enables researchers using scoping studies to develop knowledge that is better able to translate into meaningful findings for Indigenous communities.