Performance of standard imputation methods for missing quality of life data as covariate in survival analysis based on simulations from the International Breast Cancer Study Group Trials VI and VII*

Abstract

Imputation methods for missing data on a time-dependent variable within time-dependent Cox models are investigated in a simulation study. Quality of life (QoL) assessments were removed from the complete simulated datasets, which have a positive relationship between QoL and disease-free survival (DFS) and delayed chemotherapy and DFS, by missing at random and missing not at random (MNAR) mechanisms. Standard imputation methods were applied before analysis. Method performance was influenced by missing data mechanism, with one exception for simple imputation. The greatest bias occurred under MNAR and large effect sizes. It is important to carefully investigate the missing data mechanism.     

Preserving Open Access

Abstract

Libraries have an established track record of preserving the scholarly record, but this stewardship role has generally been exercised over materials the library has purchased or otherwise acquired. With open access publishing, the library’s role in preservation is less certain, as libraries may facilitate access to a wide array of freely accessible materials without ever obtaining any copies. Additionally, the open access landscape includes many small noncommercial publishers with limited resources that may not be able to invest in long term preservation and access. In this column, Courtney McAllister, Electronic Resources Librarian at Lillian Goldman Law Library, Yale University, discusses preservation concerns and strategies for open access publications and how libraries may be affected by unstable or unpredictable long-term access.     

Get Full Text Research and the Search for Appropriate Copies

Abstract

A group of the largest academic publishers has launched a new service to simplify access to full-text research for users of discovery services and scholarly collaboration platforms. While this service aims to provide easy access to full-text articles using article-level entitlement information linked to institutions through Seamlessaccess.org, it also introduces ambiguity. The service allows for publishers to direct users to alternative versions when a full-text entitlement is not found for the user, though users may already be entitled to full text through providers that do not participate in the service. Depending on specific implementations, this could lead to further confusion and make it more difficult for users to find an appropriate copy.     

Help-seeking behaviors and attitudes of emerging adults: How college students reporting recent suicidal ideation utilize the internet compared to traditional resources

Abstract

Objective: Suicide is the second leading cause of death among emerging adults, yet little is known regarding their online help-seeking. Participants: The National Research Consortium of Counseling Centers in Higher Education's dataset (N=26,292). Methods: Students across the United States were recruited from 73 four-year institutions to participate during the 2010–2011 school year. Results: Observed the effectiveness of online and traditional help-seeking stratified by recent suicidal ideation related to their most distressful period in the past year. Females and younger students endorsed both types of help-seeking, yet those with recent ideation were less likely to disclose any help-seeking. Among those reporting recent ideation, only females reported that traditional supports were more than moderately helpful. Regardless of whether students endorsed ideation, students who were younger, engaged in risky behaviors and identified as females reported that online resources were more than moderately helpful. Conclusions: Online resources could potentially bridge barriers to traditional help-seeking for those reluctant to seek out care, yet traditional resources were reported to be the most effective among this sample.     

An exploratory study of the influence of the IS function and organizational context on business process reengineering project initiatives

To help evaluate the risk of process reengineering failure and enhance the prospect of its success, three potential sources of influence on BPR initiatives and success are examined in this study. These include the innovative capacity of the organization, IS maturity and strategy-IS interface. It was found that while factors related to IT maturity and influence such as experience in mainframe and client/server computing may facilitate the decision to reengineer, they are not critical in the later stages of the initiative. On the other hand, factors having significant relationships beyond the initial decision include variables pertaining to innovative capacity of the organization and strategy-IS interface. These findings suggest that technical IT competence as a critical enabler is necessary but not sufficient for reengineering success. Based on study findings regarding the innovative capacity of the organization, guidelines for reengineering risk assessment are proposed. In addition, implications of the findings, limitations of the study and opportunities for further research are also discussed.     

Why not co‐operate?

The circumstances in which social scientists work are, of course, different in many countries. Those countries outside the EU and are not eligible for Framework Programme funding. There are some different intellectual traditions and certainly many different structures and levels of financial support in research funding agencies that need to be examined and understood.     

The gender neglect and textual abuse of children in the print media

In recent years the relationship between the media and child abuse has been subjected to closer scrutiny. Research at Monash University into the media portrayal of child abuse has led the researchers to examine the language used by the print media to represent both children who have been abused or neglected and the offences committed against them. This paper presents two findings from this research. The analysis firstly found that a child who has been abused or neglected may be objectified in print media language even when the child’s gender is previously identified. Secondly, the analysis found that the language used to describe the sexual abuse of children may serve to reduce the seriousness of offences. These phenomena, termed ‘gender neglect’ and ‘textual abuse’, are highlighted by examples from UK and Australian print media. The authors argue that ‘critical language awareness’ is important for children, just as it has been identified in research that examines the representation of women in print media. Copyright 2000 John Wiley & Sons, Ltd.     

The Gap in the Subjective Wellbeing of M��ori and New Zealand Europeans Widened Between 2005 and 2009

We compared the self-reported subjective wellbeing of M??ori and New Zealand (NZ) Europeans in two NZ national postal samples. The first sample was collected in 2005 before the global financial crisis of 2007/2010. The second was collected in 2009 while the crisis was ongoing. Both samples contained large and arguably representative samples of the indigenous peoples of NZ, M??ori (Ns = 289 and 964) as well as the now-majority group, NZ Europeans (Ns = 2,769 and 4,073). NZ Europeans?? scores on the Personal Wellbeing Index (PWI) were near-identical across the 2005 and 2009 samples. However, M??ori, who were already lower than NZ Europeans on the PWI in 2005, showed a further decrease in 2009. We argue that this gap in wellbeing widened because material advantages experienced by NZ Europeans as a social group provides a systemic buffer which protects their personal wellbeing from the impact of economic privation. M??ori, who had already experienced systemic disadvantage, were not privileged with this buffer, and thus, the effects of the 2007/2010 global financial crisis impacted their personal wellbeing to a greater extent.