There is a void of existing measures assessing young adults’ perceptions of childhood disorganized and controlling attachment. The current research project aimed to fill this gap by developing a convenient self-report measure, the Childhood Disorganization and Role Reversal Scale (CDRR: Meier & Bureau, 2012), which comprehensively assesses for the complexity of those attachment constructs in young adults. The CDRR is a novel measure as it assesses the unique attachment representations of mother-child and father-child relationships. This research project had three main objectives. The first objective was the development of the CDRR. It was guided by the recommendations of various scholars in scale development using classical measurement theory. The items of the CDRR were informed by the attachment and family systems literature. The factor structure of the CDRR was determined through conducting principal components analyses (PCA). The second objective, constituting Study 1, aimed to assess the psychometric properties of the CDRR, namely, its structural stability, internal reliability, temporal reliability, convergent and discriminant validity and criterion-related validity. Lastly, the third objective, involving Study 2, sought to provide further support for the validity of the CDRR. It accomplished this goal by exploring the associations of the CDRR to psychological outcomes consistent with the attachment literature, namely, problems in the separation-individuation process, unresolved feelings towards caregiver, and current psychological well-being. The results of the PCA revealed a four-factor structure for both CDRR parent versions. The CDRR mother version includes the Disorganization/Punitive, Mutual Hostility, Affective Caregiving, and Appropriate Boundaries scales, while the CDRR father version includes the Disorganization, Affective Caregiving, Appropriate Boundaries, and Punitive scales. Overall, support was provided for the psychometric properties of the CDRR. The CDRR scales demonstrated adequate structural stability, internal consistency, temporal reliability and various forms of validity. Generally, the disorganized and controlling scales were positively related to problematic separation-individuation, unresolved feelings towards caregivers and psychological problems. It is hoped the CDRR will assist researchers in broadening the understanding of psychological outcomes of disorganized and controlling attachment representations in young adulthood.

The cross-cultural applicability of the PTSD diagnosis has been widely disputed in recent years. Consequently, an examination of the psychometric properties of instruments that are used to assess traumatized individuals of various cultures is of utmost importance. To respond to this need, the overall goal of this dissertation was to evaluate the psychometric properties of the Harvard Trauma Questionnaire (HTQ; Mollica et al., 1992), a measure that was developed to assess trauma symptoms across cultures. In the first study, I conducted a search of all publications and dissertations that used the symptoms scales of the HTQ. This search revealed that the HTQ is commonly used by trauma researchers, however only a minority of them reported using established translation and cultural adaptation procedures to adapt the instrument for their specific sample. In addition, of the 384 studies considered for inclusion, only 44% of them reported internal consistency estimates of their sample. I then performed reliability generalization analyses on Cronbach’s alpha coefficients to assess the reliability properties of the HTQ symptom scales. Overall, 103 samples were included in the analyses, representing various cultures, languages and countries of study. The findings of this study indicated that both the HTQ-16 and 30 symptom scales are likely to provide reliable scores across diverse populations. However, the evidence supporting the reliability of scores produced for the re-experiencing, avoidance/numbing and arousal subscales is less strong. Significant moderating effects were found for various sample and methodological variables, such as the gender composition of the sample, cultural group, cultural orientation of the country of origin and trauma type. Building upon the findings of study 1, I performed validity generalization (VG) analyses to assess the overall construct validity of the HTQ symptom scales in Study 2. Seventy-five independent samples were included in the VG that evaluated the convergent and discriminant validity properties of both the HTQ-16 and HTQ-30. The findings revealed that the convergent validity properties of the HTQ-16 are supported to some extent, but the discriminant validity properties are not. Furthermore, there was limited support for either the convergent or discriminant validity of the HTQ-30. Several significant moderating effects were also found for both scales (i.e. age, gender, cultural group, recruitment site, trauma type, being an original sample). Although these studies shed some light into the overall psychometric strength of the HTQ symptom scales, the decision whether to use this instrument for the assessment of PTSD should also be guided by evidence-based assessment guidelines.

This thesis investigated the longitudinal role of defeat and entrapment in populations where these factors were expected to be particularly relevant (a sample of individuals from areas of socioeconomic deprivation and a sample of formal caregivers). The thesis then considered whether defeat and entrapment influenced reward sensitivity on a gambling task and lastly, designed a short scale measuring defeat and entrapment suitable for use in clinical populations. The research incorporated a review of the literature, two longitudinal studies, a behavioural study and the development of a scale. The literature review presented in Chapter 1 provided evidence of a well-established link between defeat, entrapment and poor mental health, suggesting that defeat and entrapment may act as a transdiagnostic process; contributing to the development and maintenance of a range of mental disorders. However, the review also demonstrated that defeat and entrapment relate to the same experiences, suggesting that logically these constructs may equally co-occur, although the structure of the constructs is currently debated. The studies presented in Chapters 3 and 4 demonstrated that perceptions of defeat and entrapment predicted poor mental health (depression and anxiety, and depression and caregiver burden) at a second time point, 12 months later. These chapters presented the first longitudinal evidence for samples recruited from the general population and occupational settings. Furthermore, these chapters provided evidence that the relationship between defeat, entrapment and poor mental health operates in a bidirectional way within a sample recruited from community settings, but a linear way within a sample of formal caregivers, suggesting that further research is needed to confirm the direction of this relationship. The research presented in Chapter 5 found a non-significant relationship between defeat and entrapment and reward sensitivity among a sample of undergraduate students. This may have arisen due to the generally low levels of defeat and entrapment within the sample despite highly varied performance on the task. Replication of this research within a sample where a wider range of defeat and entrapment experiences would be expected might be beneficial. Additionally, this thesis aimed to confirm the factor structure of defeat and entrapment amongst various populations. Exploratory and confirmatory factor analysis demonstrated that defeat and entrapment are best conceptualised as a single psychological construct (Chapters 3 and 6), supporting one-factor theories of defeat and entrapment (e.g. Taylor et al., 2011a). During the course of conducting research for this thesis, it became apparent that the length of existing scales used to measure defeat and entrapment were not suitable for use with clinical populations. Despite evidence that defeat and entrapment may reduce symptoms of mental health problems, their measurement has not yet translated to clinical practice. Although several reasons underlie this, a lack of short measurement tool is a major factor. To address this, an eight-item scale was developed, which demonstrated good psychometric properties across four samples from clinical and non-clinical settings. The current research was supported by a discussion of the clinical implications of the work, specifically identifying how defeat and entrapment could be implemented within therapeutic interventions for mental health problems. The current thesis represents a significant contribution to original research considering defeat and entrapment as predictors of mental health problems. The thesis presents the first longitudinal evidence that defeat and entrapment impact on mental health problems for individuals recruited from community and occupational settings and first application of defeat and entrapment to a behavioural task. Through development of a short scale, the thesis also presents a potential avenue to increase the measurement of defeat and entrapment in clinical settings.

El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado. / The study evaluated the psychometric properties of the Spanish version of the Obsession with COVID-19 Scale (OCS) in 214 police and members of the armed forces (M age = 29.33 years, SD = 11.28). The one-dimensionality and satisfactory reliability of OCS were confirmed with confirmatory factor analysis, Item Response Theory analysis, Cronbach’s alpha, and McDonald’s omega. The scale is useful for identifying individuals with low levels of persistent and disturbing thoughts about COVID-19. COVID-19 obsession was associated with COVID-19 fear, anxiety, and depression. The OCS is suitable for investigating the psychological impact of COVID-19 on members of the police and armed forces.

The Classroom Practice Inventory (CPI) was developed as a tool to provide descriptive information about the practices used in classrooms to address the developmental needs of children with autism spectrum disorder (ASD). Data from a multi-site study examining the outcomes for preschool students with ASD served in three types of classroom models indicate that the CPI produces reliable and valid assessments of practices used in classrooms. Items on the CPI can be used to discriminate among classroom models and can be used to provide descriptive information about classrooms following a prescribed comprehensive treatment model as well as those providing an eclectic model of services. Implications for the future use of the CPI are discussed.

We examined internal consistency and test-retest reliability of a measure of dispositional optimism, the Life Orientation Test-Revised, in 121 opiate-dependent patients seeking methadone treatment. Internal consistency was adequate at baseline (α=.69) and follow-up (α=.72). Low socioeconomic status and being on disability were significantly associated with reduced internal consistency; ethnic and educational differences approached significance. Test-retest reliability was good (ICC=.72), varying across gender, race, ethnicity, education, employment and income (ICC Range=.24-.85). Criterion validity was strong; the LOT-R was significantly negatively correlated with hopelessness (r=-.65, p<.001) and depression (r=-.60, p<.001). Findings support the use of this measure of optimism and pessimism to assess positive cognitive and emotional attributes and improve treatment strategies for opiate-dependent individuals. Future research should address the measurement and significance of optimism in minority, low socioeconomic status and poorly-educated individuals.

Excerpt: The recent study by Floden, Lennerling, Fridh, Rizell and Forsberg [1] concluded that using the Attitude Towards Organ Donor Advocacy Scale (ATODAS) is ready for use in future research studies because it has good psychometric properties for measuring ICU nurses’ attitudes towards advocacy on behalf of potential and actual organ donors. However, that conclusion is not supported by the data in the study because of lack of evidence of measurement validity

Attention-Deficit Hyperactivity Disorder (ADHD) is one of the most frequent problems for which children are referred to mental health clinics in the United States, affecting approximately 3-5% of the childhood population. Although adequate Ill assessment and identification of this disorder is imperative, most of the currently existing rating scales available to assess for ADHD in the childhood population are inadequate. The present research study involved the investigation of the factor structure and psychometric properties of a new behavior rating scale, the ADHD Symptoms Rating Scale (ADHD-SRS), developed for the assessment of ADHD in the school-age (K-12) population. The participants in this study were 753 children and adolescents (in grades K-12) who were rated by their parents and/or teachers on behavior rating scales designed to measure ADHD characteristics. The results of this research indicate that the ADHD-SRS possesses strong internal consistency. Convergent validity of this instrument was also high. as demonstrated by correlations with two previously validated behavior rating scales. Significant age and gender differences in ADHD symptoms were found with both the parent and teacher respondent populations. The temporal stability of this measure with teacher ratings was low. as was the correlation between parent and teacher ratings of the same children with this instrument. Finally, the factor analysis of the ADHD-SRS suggested a two-factor oblique rotation as the best fit for both the parent and teacher data. After a visual inspection of the items that loaded on each factor, Factor 1 was named Hyperactive-Impulsive and Factor 2 was named Inattention. These two factors, along with the items that loaded on each factor, appear to be remarkably similar to the two categories listed in the DSM-IV for ADHD. Directions for future research. as well as clinical implications and limitations of the current study, are discussed.

No description available.

Physical function has been identified as a core outcome to be assessed in low back pain (LBP). However, all recommended physical function measures are Patient-Reported Outcome Measures (PROMs). Performance-Based Measures (PBMs) are important measures that are practical and are prone to fewer biases. Two systematic reviews provided evidence on the psychometric properties of PBMs but were not comprehensive. Therefore, the purpose of this study was to identify PBMs developed for or used to assess physical function in LBP and to review studies evaluating the psychometric properties of these PBMs systematically. The first manuscript of the thesis was the systematic review protocol developed using the COSMIN (COnsensus-based Standards for the selection of health status Measurement INstruments) manual 2018. The protocol was also registered on PROSPERO (CRD42020147968). The protocol also outlined the use of the COMINS Risk of Bias (COSMIN-ROB) checklist 2018; standard priory hypotheses and criterions developed to evaluate the results of each psychometric property; as well as a GRADE criterion (Grading of Recommendations, Assessment, Development and Evaluations) to assess the level of evidence. Two reviewers independently screened, evaluated, and extracted data. The second manuscript was the systematic review written in the format of a journal for future submission. Our database search identified 47 studies assessing 115 PBMs. In general, findings included five different LBP diagnoses (e.g., non-specific LBP) and different LBP durations (e.g., acute, chronic). The level of evidence of each PBM or psychometric property mainly were generated from single studies. A high risk of bias assessed by the COSMIN-ROB checklist was found for most of the included studies. Overall, the included studies' results often did not meet our priory hypotheses for good psychometric properties. Hence, most PBMs' psychometric properties were found to have a low level of evidence. There was not a single PBM that demonstrated a good level of evidence for all properties. In conclusion, significant heterogeneity was found between studies leading to a limited level of evidence. PBMs need to be used with great caution. High-quality studies that investigate PBMs' psychometric properties are needed. / Thesis / Master of Science Rehabilitation Science (MSc) / Low Back Pain (LBP) care costs the Canadian health care system millions of dollars every year. Most clinicians and researchers use self-report questionnaires filled out by their patients to assess physical function. However, performance measures where patients perform tasks while being observed are also recommended to assess physical function. Performance-based measures can be used alone or in combination with self-report measures. To select the most appropriate performance measures, we need to know how good and trustworthy these measures are. Therefore, the purpose of this study was to collect all possible performance measures that were developed or used to assess physical function in LBP patients; then summarized the available evidence on their psychometric properties (reliability, validity and responsiveness). We searched five scientific databases and found 47 studies that evaluated 115 performance measures. Most included studies were of low quality and evaluated different tests or test properties. We found that most measures were not reliable, accurate or were sensitive to change. Therefore, clinicians and researchers need caution when selecting and interpreting results of these performance measures when evaluating physical function in LBP.