scholarly journals BCH Two-step Auxiliary Variable Integration with MplusAutomation

2021 ◽  
Author(s):  
Adam C Garber

This R tutorial automates the BCH two-step axiliary variable procedure (Bolk, Croon, Hagenaars, 2004) using the MplusAutomation package (Hallquist & Wiley, 2018) to estimate models and extract relevant parameters. To learn more about auxiliary variable integration methods and why multi-step methods are necessary for producing un-biased estimates see Asparouhov & Muthén (2014). The name of this mehtod, BCH, stands for Bolck, Croon, & Hagenaars, the authors who developed this method (Bolk, Croon, Hagenaars, 2004). This tutorial utilizes the public-use data repository named the Longitudinal Survey of American Youth (LSAY; Miller et al., 1992). The applied example used in this tutorial is based off the example presented in the seminal chapter on mixture modeling by Katherine Masyn (2013). This tutorial contains the 9 math indicators from this original study as well as two auxiliary variables.

2021 ◽  
Author(s):  
Adam C Garber

This R tutorial automates the 3-step ML axiliary variable procedure using the MplusAutomation package (Hallquist & Wiley, 2018) to estimate models and extract relevant parameters. To learn more about auxiliary variable integration methods and why multi-step methods are necessary for producing un-biased estimates see Asparouhov & Muthén (2014). The motivation for writing this tutorial is that conducting the 3-step manually is highly error prone as it requires pulling logit values estimated in the step-1 model and adding them in the model statement of the step-2 model (i.e., lots of copying & pasting). In contrast, this approach is fully replicable and provides clear documentation which translates to more reliable research.


2007 ◽  
Vol 49 (3) ◽  
pp. 689-712 ◽  
Author(s):  
Wilson Chacko Jacob

A special correspondent for the leading Egyptian newspaper al-Ahram wrote from Alexandria on 28 May 1936: “One of the effects of the Al-Bosfur nightclub murder in Cairo is that its circumstances have led to an interest in the problem of ‘al-futuwwat’ [sing., al-futuwwa] and how much power and influence (al-sat˙wa) they have in the capital and in other Egyptian cities.” The murder referred to was that of a popular singer and dancer, Imtithal Fawzi, by a band of assassins led by failed businessman and weight-trainer Fuad al-Shami. I argue here that this murder can be read as an instance of a larger event, which might be inscribed in the following way: a moment that irrevocably branded the public figure of futuwwa with the additional meanings of thug, mobster, and nefarious villain—bal ˙tagi. This is not the conventional way of registering this moment; indeed, the modern transformation of al-futuwwa is rarely considered as a historical event. It is not my aim here to affirm or deny the outcome of this transformation, nor am I suggesting that the normative conception of al-futuwwa as an Islamic ideal of masculinity had never before had any negative connotations. Rather, I posit—and want to interrogate—a changed historical relationship in the constitution of al-futuwwa, in which the nature of history itself was radically transformed and contributed to the formation of a new politics and a new subject of politics. As part of the hegemonic rise of this field of politics and its subject, history typically shows, or simply presumes, that other life-worlds, like that of the futuwwat and their particular form of power, were rendered exceptional and ultimately obsolete. In a larger project from which this article is drawn, I explored the gendered constitution of that new cultural and political hegemony. I labeled the gender norm that emerged at the intersection of colonial modernity and nationalism as effendi (bourgeois) masculinity, which I located in a new constellation of practices and discourses around the desirable, modern body. The present essay is in part an effort to de-center this bourgeois figure and the terms of its narration, which I unwittingly reproduced in the original study by rendering the event of the futuwwa's transformation as a bit part within a larger story of ostensibly greater national and historical import.


2021 ◽  
Vol 10 (1) ◽  
pp. 150
Author(s):  
Salem Salem Juber ◽  
Muhammad Awad Saker

The Sharia Hisba is an integrated Islamic system of pillars and construction whose theme is enjoining good and forbidding evil, and aims at stabilizing societies and the supremacy of virtue and high morals in it, and rejecting vice and bad morals from it. The legal public prosecution system is an accusatory system that seeks to safeguard the right of the state and the right of the individual to the public order to ensure a society free from apparent crimes, and a regular picture of the state and individuals is formed in a coherent body without chaos. The Hisba system is a symbiotic social system that moves through the community’s control of the community, while the public case system and its tools from the Public Prosecution and other institutions is a deterrent institutional system that moves in the light of the law and deals in accordance with its principles and limits.


BMJ Open ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. e024020 ◽  
Author(s):  
Genevieve P Kanter ◽  
Daniel Carpenter ◽  
Lisa Lehmann ◽  
Michelle M Mello

ObjectiveTo determine the effect of the public disclosure of industry payments to physicians on patients’ awareness of industry payments and knowledge about whether their physicians had accepted industry payments.DesignInterrupted time series with comparison group (difference-in-difference analyses of longitudinal survey).SettingNationally representative US population-based surveys. Surveys were conducted in September 2014, shortly prior to the public release of Open Payments information, and again in September 2016.ParticipantsAdults aged 18 and older (n=2180).Main outcome measuresAwareness of industry payments as an issue; awareness that industry payments information was publicly available; knowledge of whether own physician had received industry payments.ResultsPublic disclosure of industry payments information through Open Payments did not significantly increase the proportion of respondents who knew whether their physician had received industry payments (p=0.918). It also did not change the proportion of respondents who became aware of the issue of industry payments (p=0.470) but did increase the proportion who knew that payments information was publicly available (9.6% points, p=0.011).ConclusionsTwo years after the public disclosure of industry payments information, Open Payments does not appear to have achieved its goal of increasing patient knowledge of whether their physicians have received money from pharmaceutical and medical device firms. Additional efforts will be required to improve the use and effectiveness of Open Payments for consumers.


2020 ◽  
Vol 2020 ◽  
pp. 1-13 ◽  
Author(s):  
Saddam Hussain ◽  
Mi Zichuan ◽  
Sardar Hussain ◽  
Anum Iftikhar ◽  
Muhammad Asif ◽  
...  

In this paper, we proposed two new families of estimators using the supplementary information on the auxiliary variable and exponential function for the population distribution functions in case of nonresponse under simple random sampling. The estimations are done in two nonresponse scenarios. These are nonresponse on study variable and nonresponse on both study and auxiliary variables. As we have highlighted above that two new families of estimators are proposed, in the first family, the mean was used, while in the second family, ranks were used as auxiliary variables. Expression of biases and mean squared error of the proposed and existing estimators are obtained up to the first order of approximation. The performances of the proposed and existing estimators are compared theoretically. On these theoretical comparisons, we demonstrate that the proposed families of estimators are better in performance than the existing estimators available in the literature, under the obtained conditions. Furthermore, these theoretical findings are braced numerically by an empirical study offering the proposed relative efficiencies of the proposed families of estimators.


2015 ◽  
Vol 36 (6/7) ◽  
pp. 462-475 ◽  
Author(s):  
Mary Wilkins Jordan

Purpose – The purpose of this paper is to identify competencies in common across public library managers. Design/methodology/approach – The request for public library managers to participate in this survey was posted to the public listserve. Participants were asked about the tasks they do regularly, to identify the skills currently seen as most important in their work. They were then given a list of competencies, and asked to identify those they felt were most important for current public library managers, for those in future managers. Findings – Some commonalities emerged, but there was not a substantial amount of overlap between skills identified by directors and non-director managers as important now or into the future. Research limitations/implications – Further research into managerial competencies focussed on specific job titles is necessary to see what kinds of skills each may value. Likewise, a broader look at public library managers may provide a better set of common competencies that will be useful for both training and hiring. Practical implications – Understanding strategies for managerial competencies will be useful in building successful training programs. Social implications – Learning in this study that it will be challenging to carry out training relevant to all types of public library managers is useful; instead it can be tailored to different levels of managers for more success. Originality/value – This is an original study, building on other work the author has carried out. The value is in understanding the real needs of managers, not just anecdotal stories.


1983 ◽  
Vol 32 (1-2) ◽  
pp. 47-56 ◽  
Author(s):  
S. K. Srivastava ◽  
H. S. Jhajj

For estimating the mean of a finite population, Srivastava and Jhajj (1981) defined a broad class of estimators which we information of the sample mean as well as the sample variance of an auxiliary variable. In this paper we extend this class of estimators to the case when such information on p(> 1) auxiliary variables is available. The estimators of the class involve unknown constants whose optimum values depend on unknown population parameters. When these population parameters are replaced by their consistent estimates, the resulting estimators are shown to have the same asymptotic mean squared error. An expression by which the mean squared error of such estimators is smaller than those which use only the population means of the auxiliary variables, is obtained.


Author(s):  
H. Visuri ◽  
J. Jokela ◽  
N. Mesterton ◽  
P. Latvala ◽  
T. Aarnio

<p><strong>Abstract.</strong> The amount and the quality of 3D spatial data are growing constantly, but the data is collected and stored in a distributed fashion by various data collecting organizations. This may lead to problems regarding interoperability, usability and availability of the data. Traditionally, national spatial data infrastructures have focused on 2D data, but recently there has been great progress towards introducing also 3D spatial data in governmental services. This paper studies the process of creating a country-wide 3D data repository in Finland and visualizing it for the public by using an open source map application. The 3D spatial data is collected and stored into one national topographic database that provides information for the whole society. The data quality control process is executed with an automated data quality module as a part of the import process to the database. The 3D spatial data is served from the database for the visualization via 3D service and the visualization is piloted in the National Geoportal.</p>


PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0243584
Author(s):  
Sardar Hussain ◽  
Sohaib Ahmad ◽  
Sohail Akhtar ◽  
Amara Javed ◽  
Uzma Yasmeen

In this paper, we propose two new families of estimators for estimating the finite population distribution function in the presence of non-response under simple random sampling. The proposed estimators require information on the sample distribution functions of the study and auxiliary variables, and additional information on either sample mean or ranks of the auxiliary variable. We considered two situations of non-response (i) non-response on both study and auxiliary variables, (ii) non-response occurs only on the study variable. The performance of the proposed estimators are compared with the existing estimators available in the literature, both theoretically and numerically. It is also observed that proposed estimators are more precise than the adapted distribution function estimators in terms of the percentage relative efficiency.


Sign in / Sign up

Export Citation Format

Share Document