Sequential procedures in identification

In this paper we study the problem of identifying a popula-tion with one of the two populations, with an aim to control both types of errors. We assume that the populations are normal with unknown means, but with unit variance. We have cited examples from anthropological studies where our formulation of the problem fits in quite nicely. We observe that SPRT’s based on the maximal invariant may not terminate with probability one. Simulation studies reported here show a substantial saving in the average number of samples compared to the best invariant fixed sample test.     

Use of ranks in probability propoetional to size sampling

Use of ranks in unequal probability sampling is examined for sample selection, stratification as well as determining the strata boundaries. A few sampling schemes are proposed and investigated, For samples of size two, two sampling schemes and their 1PPS versions are discussed, An extension of these schemes to general sample sizes is outlined. Nonnegative unbiased variance estimators are proposed in each case, An empirical comparison is included.     

Estimation of parameters of the gped

Janardan (1973) introduced the generalized Polya-Eggenberger distribution as a limiting form of the generalized Markov-Polya distribution (GMPD), Ja¬nardan (1998) derived GPED formally by means of Lagrange's expansion and discussed its various properties systematically. Here, a new urn model is pro¬vided for the GPED. Moment estimators of the parameters are given in closed form. Maximum hkelihood estimators are also given. Some apphcations are provided.     

Practically wise leadership: toward an integral understanding

This paper presents a model of practical wisdom that integrates various dimensions of experience and multiple levels of analysis, providing a meta‐theoretical framework through which to understand wise leadership practice in contemporary organizations. Drawing on phenomenological accounts of embodiment and emotion, we seek to overcome limitations in organizational research due to methodological individualism, exclusively cognitivist assumptions about human knowledge, and a lack of sensitivity to the complexity and dynamism associated with wisdom as it unfolds in organizations. In an effort to enact the processual aspect of wisdom in relation to the community of leadership scholars and practitioners, we additionally discuss various stages and lines of development relevant to wise leadership practice in organizations.     

Development Guidelines from a Study of Suicide Prevention Mobile Applications (Apps)

Every day, Americans are inundated with advertisements and appeals to purchase the latest mobile technology in the form of smart phones, tablets, and their accompanying applications (apps). Human service organizations (HSOs) across the United States have begun to recognize that apps can provide a valuable resource for individuals and communities by addressing social issues. Additionally, forward-thinking HSOs are aware that apps are a fresh and important way of reaching a rapidly changing, tech-savvy population. But just like the marketplace at large yields a variety of apps that range from useful and engaging to poorly contrived and ineffective, HSOs' foray into app development has achieved mixed results. This report analyzes existing mobile applications available for one specific field of HSO service delivery—suicide prevention—in order to describe what is currently available and to generate beginning guidelines for the development, implementation, and evaluation of new suicide prevention apps for underserved populations. Twenty-seven apps were analyzed and recommendations for HSOs and future research are presented.     

Measuring precautionary wealth using cross-sectional data: the case of farm households

This study models and investigates the presence of precautionary wealth among farm households, something few studies have attempted. Using pooled farm-level data, we find that self-employed farm households accumulate more wealth. Precautionary savings is about 8% of total household wealth. In addition, we find that age, education, occupation, and operation size are important factors influencing wealth accumulation by US farm households.     

Toward the Establishment of General Dimensions Underlying the Listening Process

Findings from previous research (Coakley, Halone, & Wolvin, 1996; Halone, Wolvin, & Coakley, 1997; Wolvin, Coakley, & Halone, 1995) indicate that the listening process may be conceptualized primarily in (a) cognitive, (b) affective, (c) behavioral/verbal, (d) behavioral/nonverbal, and (e) behavioral/interactive terms. This report seeks to quantitatively confirm these qualitatively-derived findings. Specifically, this study sought to analyze whether each respective dimension could be generally characteristic of the listening process. Confirmatory factor analyses were conducted, providing support for each respective dimension. Results from this study have implications for how communication scholars should conceive of the listening process in theoretical, empirical, and pedagogical terms.     

Bounds to Memory Loss

If we express our knowledge in sentences, we will find that these sentences are linked in complex patterns governed by our observations and our inferences from these observations. These inferences are to a large extent driven by logical rules. We ask whether the structure logic imposes on our knowledge restricts what we forget and what we remember. The model is a two period S5 logic. In this logic, we propose a memory loss operator: the agent forgets a sentence pif and only if he knows pat time 1 and he does not know pat time 2. Equipped with the operator, we prove theorems on the relation between knowledge and memory loss. The main results point to classes of formulas that an agent cannot forget, and classes of formulas he must forget. A desirable feature is that most results hold in the S4 logic. The results illustrate bounds to memory loss, and thus to bounded rationality. We apply the model to single-agent conventions: conventions made between an agent and himself.