3,452 research outputs found
Index of Problematic Online Experiences: Item Characteristics and Correlation with Negative Symptomatology
This exploratory study aimed to develop and test a quick, easily administered instrument, the Index of Problematic Online Experiences (I-POE). The goal of the I-POE extends beyond assessing for Internet overuse to broadly assess problematic Internet use across several domains and activities. Data was collected from 563 college students from a Northern New England university using an online survey methodology. Results indicated the I-POE has adequate construct validity and is highly correlated with a variety of relevant constructs: depression, anger=irritability, tension-reduction behavior, sexual concerns, and dysfunctional sexual behavior as measured by the Trauma Symptom Inventory; as well as amount of Internet use and permissive attitudes toward engaging in a variety of sexual activities. Early flagging of online experiences could mitigate the negative effects associated with problematic use. The I-POE, as an easy-to-administer, short screening index, holds promise in this regard. Initial testing of the instrument points to its utility in identifying persons who are experiencing a broad range of Internet-related problems
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You Take the High Road, and Iâll Take the Low Road:Evaluating the Topographical Consistency of Cognitive Models
We present a novel framework for assessing the fit of cogni-tive models. Using this framework, we highlight limitationsof existing methods of model evaluation, and derive new ap-proaches to validating cognitive models. Tests of topographi-cal consistency emphasize how a modelâs structure constrainsbehavior on pairs of coupled stimuli, even when point predic-tions on individual stimuli depend on estimates of the modelâsfree parameters. By carefully selecting these coupled stim-uli such that they follow the distinct topography of the model,researchers can overcome some limitations of existing meth-ods. Finally, we provide a proof-of-concept example of how touse our approach to assess a model of multi-alternative, multi-attribute choice
Assessment and Response Protocol
The purpose of this protocol is to support clinicians to use PCOCâs assessment and response framework to identify, respond to and communicate patient, and family/carerâs needs. The resource contains strategies for embedding the assessment tools into routine practice
The Complexity of Language and Learning: Deconstructing Teachers\u27 Conceptions of Academic Language
âAcademic languageâ is a term that is thrown around frequently in educational circles, particularly in recent years. Whether in pre-service teacher education with candidates and cooperating teachers preparing for the widely required Teacher Performance Assessment (edTPA; Stanford Center for Assessment, Learning, and Equity, 2016), or in-service teachers grappling with the implementation of the Common Core Standards (National Governors Association, 2010), academic language has become de rigueur a jargon term required for a number of current classroom, school, and university initiatives. But what is academic language
Comparison of Costs of Home and Facility-based Basic Obstetric Care in Rural Bangladesh
This study compared the costs of providing antenatal, delivery and postnatal care in the home and in a basic obstetric facility in rural Bangladesh. The average costs were estimated by interviewing midwives and from institutional records. The main determinants of cost in each setting were also assessed. The cost of basic obstetric care in the home and in a facility was very similar, although care in the home was cheaper. Deliveries in the home took more time but this was offset by the capital costs associated with facility-based care. As use-rates increase, deliveries in a facility will become cheaper. Antenatal and postnatal care was much cheaper to provide in the facility than in the home. Facility-based delivery care is likely to be a cheaper and more feasible method for the care provider as demand rises. In settings where skilled attendance rates are very low, home-based care will be cheaper
Robust optimization of SVM hyperparameters in the classification of bioactive compounds
Background:
Support Vector Machine has become one of the most popular machine learning tools used in vir
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tual screening campaigns aimed at finding new drug candidates. Although it can be extremely effective in finding
new potentially active compounds, its application requires the optimization of the hyperparameters with which the
assessment is being run, particularly the
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and
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values. The optimization requirement in turn, establishes the need
to develop fast and effective approaches to the optimization procedure, providing the best predictive power of the
constructed model.
Results:
In this study, we investigated the Bayesian and random search optimization of Support Vector Machine
hyperparameters for classifying bioactive compounds. The effectiveness of these strategies was compared with the
most popular optimization proceduresâgrid search and heuristic choice. We demonstrated that Bayesian optimiza-
tion not only provides better, more efficient classification but is also much fasterâthe number of iterations it required
for reaching optimal predictive performance was the lowest out of the all tested optimization methods. Moreover,
for the Bayesian approach, the choice of parameters in subsequent iterations is directed and justified; therefore, the
results obtained by using it are constantly improved and the range of hyperparameters tested provides the best over
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all performance of Support Vector Machine. Additionally, we showed that a random search optimization of hyperpa-
rameters leads to significantly better performance than grid search and heuristic-based approaches.
Conclusions:
The Bayesian approach to the optimization of Support Vector Machine parameters was demonstrated
to outperform other optimization methods for tasks concerned with the bioactivity assessment of chemical com-
pounds. This strategy not only provides a higher accuracy of classification, but is also much faster and more directed
than other approaches for optimization. It appears that, despite its simplicity, random search optimization strategy
should be used as a second choice if Bayesian approach application is not feasible
Development and Validation of a Routine Session-by-Session Experience Measure for Youth Mental Health Services:My Youth Mental Health Session Experience (MySE)
Purpose: The âMy youth mental health Session Experienceâ (MySE) measure was developed by headspace, Australiaâs National Youth Mental Health Foundation, in collaboration with young people, for use as a routine session experience measure across its national centre service network. The measure fills a gap in measures needed to implement measurement-informed care in youth mental health care. Participants and Methods: Routinely collected data from 37,201 young people aged 12 to 25 years who commenced an episode of care at one of the 150 headspace centres between 1 July 2021 and 30 June 2022 were used to validate the five-item measure. Results: MySE demonstrated high internal consistency invariant over age and gender groups. There was one latent factor of session experience that all MySE items relate to, although this factor does not adequately capture all the information present in the individual items. A significant age effect showed that young adults reported more positive session experiences than adolescents. Conclusion: MySE demonstrated strong psychometric properties and is suitable for use in youth mental health care as a routine session-by-session experience measure. Such measures are needed to routinely inform clinicians of how young people are experiencing their treatment sessions, thereby contributing to better retention, engagement, and client outcomes through measurement-informed care.</p
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