In Search of the Criterion Standard Test in Diagnostic Testing

Given a certain technology or procedure for diagnostic testing, different cutoff points produce different sensitivity and specificity rates. The cutoff point that generates highest sensitivity and specificity establishes the Criterion Standard Test (otherwise known as the Gold Standard Test). If, subject to good reason, a new testing technology or procedure emerges, the optimum cutoff point associated with it may generate higher sensitivity and specificity and thus a new improved Criterion Standard Test. Various cutoff selection methodologies have been proposed, all based on Euclidean geometry, involving the so-called Receiver Operating Characteristic (ROC) curve. Our purpose in this paper is to recommend a new selection methodology based on the P-Value associated with the well-known Pearson’s chi-squared test (χ2) – the conventional test utilized when testing for dependence between state of nature (disease present or not present) and evidence (test positive or negative measures). Using a hypothetical numerical example, we demonstrate that the cutoff point associated with the lowest P-Value of the Pearson’s chi-squared test is the one that maximizes sensitivity and specificity, or overall accuracy, thus establishing the Criterion Standard Test. Although the best geometric method (sums of squares) and the proposed method are equally effective in selecting the optimum cutoff point, only the proposed new procedure selects based on statistical significance. Additionally, we propose a simple theoretical benefits / costs linear setting to discuss the importance of net benefits associated with testing accuracy and reference harmful as well as beneficial testing cases found in various literature sources

Managerial Mindsets Toward Corporate Social Responsibility: The Case of Auto Industry in Iran

Despite a plethora of empirical evidence on the potential role of senior management in the success of corporate social responsibility (CSR) in Western-dominated organizational contexts, little attempt has been made to document the various managerial mindsets toward CSR in organizations in Muslim-dominated countries in the Middle East region. To address this existing lacuna of theoretical and empirical research in CSR management, this paper offers a qualitative case study of CSR in three manufacturing firms operating in Iran’s auto industry. Based on an inductive analysis of the qualitative data, three types of managerial mindset toward CSR are identified: conformist, self-seeker, and satisfier. While it is evident that these different mindsets of Iranian managers seek to serve managerial ends and short-term self-interests, they fall short of core values of Islamic ethics and CSR

Nurturing Innovation Through Entrepreneurial Ecosystems: What Does the Literature Say?

This chapter presents a literature review about entrepreneurial ecosystems and their relationship with entrepreneurship and innovation. Reviewed studies were aggregated into clusters and interpreted through the Neck et al. (2004) framework, providing a systematized summary of the surveyed literature