Critical Success Factors for Strategic Alliances in the Information Technology Industry: An Empirical Study*

Intense competition in the marketplace is forcing organizations to examine different ways by which they could enhance or retain their competitive edge. Strategic alliance is one such option through which an organization can leverage its resources to emerge as an effective competitor. Such alliances are burgeoning in the information technology industry, which is characterized by rapid change and short innovation cycles. Successful management of alliances has proved to be very elusive for the most part, and there is a lack of theoretical and empirical work in this area. Literature on critical factors was synthesized, and then a parsimonious set of critical factors was identified using a combination of interview and survey methodologies. Our study has implications for both practice and future research.     

Two-step calibration of design weights under two auxiliary variables in sample survey

Calibration on the available auxiliary variables is widely used to increase the precision of the estimates of parameters. Singh and Sedory [Two-step calibration of design weights in survey sampling. Commun Stat Theory Methods. 2016;45(12):3510–3523.] considered the problem of calibration of design weights under two-step for single auxiliary variable. For a given sample, design weights and calibrated weights are set proportional to each other, in the first step. While, in the second step, the value of proportionality constant is determined on the basis of objectives of individual investigator/user for, for example, to get minimum mean squared error or reduction of bias. In this paper, we have suggested to use two auxiliary variables for two-step calibration of the design weights and compared the results with single auxiliary variable for different sample sizes based on simulated and real-life data set. The simulated and real-life application results show that two-auxiliary variables based two-step calibration estimator outperforms the estimator under single auxiliary variable in terms of minimum mean squared error.     

Predictors of Cambodian parents’ perceptions of corporal punishment

This cross‐sectional study was conducted to examine the predictors of parents’ positive perceptions of using corporal punishment on their children. We investigated whether there is a gender difference in the use of corporal punishment according to parents’ gender and socioeconomic variables and what factors predict Cambodian parents’ positive perceptions of the use of corporal punishment toward sons and daughters. Cambodian parents hold different views on raising boys versus girls. Younger parents with more children, limited education, low socioeconomic status, unemployed, living in rural areas, and parents who hold positive perceptions of spousal abuse of women were more likely to approve of the use of corporal punishment. Our results present implications for social work practice and policy, particularly in child welfare in Cambodia. Most importantly, in order to prevent the use of corporal punishment on children in the home, the government of Cambodia as well as domestic and international organizations need to make more active efforts to promote parenting education.     

Non-parametric Tests for the Comparison of Point Processes Based on Incomplete Data

We consider the comparison of point processes in a discrete observation situation in which each subject is observed only at discrete time points and no history information between observation times is available. A class of non-parametric test statistics for the comparison of point processes based on this kind of data is presented and their asymptotic distributions are derived. The proposed tests are generalizations of the corresponding tests for continuous observations. Some results from a simulation study for evaluating the proposed tests are presented and an illustrative example from a clinical trial is discussed.     

Exploring literacy in Social Work Education: a social practices approach to student writing

The literacy of social workers has been highlighted as a concern by the strengthening of both entry and assessment literacy requirements of the new social work degree in the United Kingdom. This paper challenges the traditional perception of student writing, the specific focus of this paper, as being associated with basic literacy and skill acquisition, by presenting a ‘social practices’ approach to student writing in social work education. Whilst in no way contradicting the belief that literacy is central to professional social work competence, and thus an essential aspect of social work education, this approach provides a social and cultural framework for educators to reflect upon what it means for students to engage in writing in social work courses. The paper focuses in particular on meaning making experiences of non‐traditional (including Black and Minority Ethnic) students engaging in academic writing. The paper is based upon research which explores the experiences of a socially and ethnically diverse group of social work students engaged in academic writing on a diploma in social work programme. Whilst representing work in development, it suggests that the recognition of issues such as language history and identity are of significant importance for social work programmes striving to ensure that non‐traditional students are not disadvantaged in their academic writing.     

A study of mediating variables of the relationship between 360° feedback and employee performance

The 360° feedback has been linked to several positive outcomes like improved performance, better interpersonal communication and smoother work relationships. Both academicians and practitioners would like more clarity regarding the link between 360° feedback and employee performance and the mediating factors in this relationship. This study empirically examines these mediating effects with a sample of executives (N = 198) working in four organizations in western part of India. The results show that interpersonal communication and quality of working life have a complete mediating effect. Leader–member exchange quality and perceived organizational support were found to have a partial but significant mediating effect. An elementary form of an integrated model, which includes all the four mediating variables and their interrelationships, has been developed conceptually. This model is examined and built up empirically using structural equation modelling.     

Confidence Intervals for Survival Probabilities: A Comparison Study

The confidence interval of the Kaplan–Meier estimate of the survival probability at a fixed time point is often constructed by the Greenwood formula. This normal approximation-based method can be looked as a Wald type confidence interval for a binomial proportion, the survival probability, using the “effective” sample size defined by Cutler and Ederer. Wald-type binomial confidence interval has been shown to perform poorly comparing to other methods. We choose three methods of binomial confidence intervals for the construction of confidence interval for survival probability: Wilson's method, Agresti–Coull's method, and higher-order asymptotic likelihood method. The methods of “effective” sample size proposed by Peto et al. and Dorey and Korn are also considered. The Greenwood formula is far from satisfactory, while confidence intervals based on the three methods of binomial proportion using Cutler and Ederer's “effective” sample size have much better performance.     

Mixed‐scale models for survival/sacrifice experiments

Information derived from interim sacrifices or on cause of death is routinely used in the statistical analyses of carcinogenicity experiments involving occult tumours. The authors describe a simple semiparametric model which does not require this information. Natural deaths during the experiment and the usual terminal sacrifice provide sufficient information to ensure that the tumour incidence rates, which are of primary interest in occult‐tumour studies, can be estimated nonparametrically. The advantages of this semiparametric approach to the analysis of survival/sacrifice experiments are illustrated using data from a study on benzyl acetate conducted under the U. S. National Toxicology Program. The results derived compare favourably with those obtained using a previously published approach to the analysis of tumorigenicity data.