Social and Behavioral Sciences Commons^™

The Effectiveness Of Stepwise Discriminant Analysis As A Post Hoc Procedure To A Significant Manova, Erik L. Heiny, Daniel J. Mundform

Journal of Modern Applied Statistical Methods

The effectiveness of SWDA as a post hoc procedure in a two-way MANOVA was examined using various numbers of dependent variables, sample sizes, effect sizes, correlation structures, and significance levels. The procedure did not work well in general except with small numbers of variables, larger samples and low correlations between variables.

Model Based Vs. Model Independent Tests For Cross-Correlation, H.E.T. Holgersson, Peter S. Karlsson

Journal of Modern Applied Statistical Methods

This article discusses the issue of whether cross correlation should be tested by model dependent or model independent methods. Several different tests are proposed and their main properties are investigated analytically and with simulations. It is argued that model independent tests should be used in applied work.

On Exact 100(1-Α)% Confidence Interval Of Autocorrelation Coefficient In Multivariate Data When The Errors Are Autocorrelated, Madhusudan Bhandary

Journal of Modern Applied Statistical Methods

An exact 100(1−α)% confidence interval for the autocorrelation coefficient ρ is derived based on a single multinormal sample. The confidence interval is the interval between the two roots of a quadratic equation in ρ . A real life example is also presented.

The Performance Of Multiple Imputation For Likert-Type Items With Missing Data, Walter Leite, S. Natasha Beretvas

Journal of Modern Applied Statistical Methods

The performance of multiple imputation (MI) for missing data in Likert-type items assuming multivariate normality was assessed using simulation methods. MI was robust to violations of continuity and normality. With 30% of missing data, MAR conditions resulted in negatively biased correlations. With 50% missingness, all results were negatively biased.

Median-Unbiased Optimal Smoothing And Trend Extraction, Dimitrios D. Thomakos

Journal of Modern Applied Statistical Methods

The problem of smoothing a time series for extracting its low frequency characteristics, collectively called its trend, is considered. A competitive approach is proposed and compared with existing methods in choosing the optimal degree of smoothing based on the distribution of the residuals from the smooth trend.

On A Comparison Between Two Measures Of Spatial Association, Faisal G. Khamis, Abdul Aziz Jemain, Kamarulzaman Ibrahim

Journal of Modern Applied Statistical Methods

Two measures of spatial association between two variables were used by many researchers. These are the Wartenberg (1985) and Lee (2001) measures. Based on simulation for lattice data, the sensitivity of both measures was studied and compared with different choices of spatial structures, spatial weights and sample sizes using bias and mean square error. Different scenarios are used in terms of assumed numbers and sample sizes. Moran’s I is used to examine the spatial autocorrelation of such a variable with itself. Both the Wartenberg and Lee measures are found to be sensitive, however, Wartenberg’s measure is found to be somewhat …

An Evaluation Of Multiple Imputation For Meta-Analytic Structural Equation Modeling, Carolyn F. Furlow, S. Natasha Beretvas

Journal of Modern Applied Statistical Methods

A simulation study was used to evaluate multiple imputation (MI) to handle MCAR correlations in the first step of meta-analytic structural equation modeling: the synthesis of the correlation matrix and the test of homogeneity. No substantial parameter bias resulted from using MI. Although some SE bias was found for meta-analyses involving smaller numbers of studies, the homogeneity test was never rejected when using MI.

Impact Of Measurement Model Modification On Structural Parameter Integrity When Measurement Model Is Misspecified, Weihua Fan

Journal of Modern Applied Statistical Methods

In the process of model modification, parameters of residual covariances are often treated as free parameters to improve model fit. However, the effect of such measurement model modifications on the important structural parameter estimates under various measurement model misspecifications has not been systematically studied. Monte Carlo simulation was conducted to compare structural estimates before and after measurement model modifications of adding residual covariances under varying sample sizes and model misspecifications. Results showed that researchers should pay attention when such measurement model modifications are made to initially misspecified model with missing path(s).

Can Specification Searches Be Useful For Hypothesis Generation?, Samuel B. Green, Marilyn S. Thompson

Journal of Modern Applied Statistical Methods

Previous studies suggest that results from specification searches, as typically employed in structural equation modeling, should not be used to reach strong research conclusions due to their poor reliability. Analyses of computer generated data indicate that search results can be sufficiently reliable for exploratory purposes with properly designed and analyzed studies.

Measuring Openness, Gaetano Ferrieri

Journal of Modern Applied Statistical Methods

A method for measuring international openness is elaborated. This synthetic indicator measures the capacity of countries for a given phenomenon adjusted for their weight in the same phenomenon. The method implemented and applied to international trade and illustrated here as a case study in merchandise exports, has a wide range of applications in the socio-economic field.

On The Appropriate Transformation Technique And Model Selection In Forecasting Economic Time Series: An Application To Botswana Gdp Data, D. K. Shangodoyin, K. Setlhare, K. K. Moseki, K. Sediakgotla

Journal of Modern Applied Statistical Methods

Selected data transformation techniques in time series modeling are evaluated using real-life data on Botswana Gross Domestic Product (GDP). The transformation techniques considered were modified, although reasonable estimates of the original with no significant difference at α = 0.05 level were obtained: minimizing square of first difference (MFD) and minimizing square of second difference (MSD) provided the best transformation for GDP, whereas the Goldstein and Khan (GKM) method had a deficiency of losing data points. The Box-Jenkins procedure was adapted to fit suitable ARIMA (p, d, q) models to both the original and transformed series, with AIC and SIC as …

A New Biased Estimator Derived From Principal Component Regression Estimator, Set Foong Ng, Heng Chin Low, Soon Hoe Quah

Journal of Modern Applied Statistical Methods

A new biased estimator obtained by combining the Principal Component Regression Estimator and the special case of Liu-type estimator is proposed. The properties of the new estimator are derived and comparisons between the new estimator and other estimators in terms of mean squared error are presented.

Optimal Meter Placement By Reconciliation Conventional Measurements And Phasor Measurement Units (Pmus), Reza Kaihani, Ali Reza Seifi

Journal of Modern Applied Statistical Methods

The success of state estimation depends on the number, type and location of the established meters and RTUs on the system. A new method by incorporating conventional measurements and New Technology of Phasor Measurement Units (PMU) is proposed. Conventional meters (power injection and power flow measurements) are allocated in order to reduce the number of meters, RTUs, critical measurements, critical sets and leverage points, and also to improve the numerical stability of equations; a genetic algorithm is used for optimization. A second step involves adding PMUs in areas in which it is expected that the accuracy of state estimation will …

Are Conditions On Cash Transfers Necessary To Improve Rural Education Outcomes? Evidence From Nicaragua, Zachary Mcdade

Economics Honors Projects

Across Latin America, conditional cash transfer programs (CCTs), in which governments pay poor families conditional on their children attending school, have successfully increased enrollment and attendance rates. No empirical evidence supports the need for costly conditionality, however, and I compare the effect of Nicaraguan unconditional remittances to the effect of CCTs to determine which more strongly influences educational investment. I test the outcomes of school enrollment and attendance and find that unconditional transfers more strongly impact enrollment, while conditional transfers more strongly increase attendance.

Avatime Noun Classes, Ronny C. Watkins

Linguistics Honors Projects

Like many African languages, particularly Bantu languages, the Ghanaian language of Avatime organizes its nouns into a class system. Noun classes use affixes to indicate semantic category. For example, many languages with noun classes have a class for ‘people’ nouns, such as ‘child’ and ‘stranger.’ Previous research on Avatime has postulated between seven and nine classes. The current study is based on original field work done in the village of Vane in Ghana. The new data show that Avatime has seven noun classes, distinguished by singular and plural prefixes, definite article suffixes, and semantic similarities.

Torch (May/June 2010), Brandon Baldwin, Civil Rights Team Project

Torch: The Civil Rights Team Project Newsletter

No abstract provided.

จามจุรีรำลึก 100 ปี ถนนพญาไท, บัณฑิต จุลาสัย, รัชดา โชติพานิช

Jamjuree Journal

No abstract provided.

The Economic Impact Of Medicaid Spending In Arkansas, Katherine A. Deck, Viktoria Riiman

Publications and Presentations

Arkansas Medicaid is a joint federal and state program that provides necessary medical services to needy and low-income persons that is administered through the Arkansas Division of Medical Services at the Arkansas Department of Human Services. The Medicaid program is designed to provide the baseline health outcomes that are necessary for the state’s economy to function. The expenditures that are made through the Arkansas Medicaid program significantly affect the Arkansas economy. This report details the economic impacts of the direct expenditures of the Medicaid program on the Arkansas economy.

Spring 2010, Full Issue

Undergraduate Psychology Research Methods Journal

No abstract provided.

Renewed Growth And Poverty Reduction In Zambia, Arne Bigsten, Sven Tengstam

Zambia Social Science Journal

The Zambian economy has grown relatively fast over the last decade. This article discusses the challenge of using these growing resources effectively to improve the welfare of the population and reduce poverty. The poverty head count index is found to have declined between 1998 and 2004 by about 5.4 percentage points. This change can be decomposed into a 6.6 percentage point reduction due to growth and a 1.2 percentage point increase due to inequality change.

Since poverty is most severe in the rural areas, it is important to make agriculture more efficient by expanding access to electricity and improving roads, …

The Future Of The Rhode Island Economy, James C. Leshane

Senior Honors Projects

No one would argue that the economy in the United States has been faltering in recent years; due in part to global factors, and even with stimulus plans offered by the Federal Government, there is increased burden on states to find forms of revenue. More and more, states must compete not only with other states, but also on the global market, for a share of decreasing revenues. Since the decline of manufacturing and a move towards a service economy, states like Rhode Island which in the past depended heavily on the manufacturing sector to provide jobs for its’ citizens, have …

Where Were The Media In The Financial Crisis Of 2008, And Have We Seen This Trend Before?, Margaret Dickinson

Honors Projects in Communication

In the fall of 2008, the United States and the rest of the world experienced significant financial turmoil. The financial industry as we knew it crumbled before our eyes. After experiencing this event and the media's fragmented and inconsistent coverage of it, I felt an interesting topic to look into was the financial press' failed coverage of the finance industry, both today and in the past. In looking at this event, I will focus on both the financial press that failed to cover the happenings of the financial industry, as well as those that did recognize the issue at hand. …

From The Editor, Jeffrey Smith

The Confluence (2009-2020)

No abstract provided.

Determinants Of Child Nutritional Status In Zambia: An Analysis Of A National Survey, Felix Masiye, Chitalu Chama, Bona Chitah, Dick Jonsson

Zambia Social Science Journal

Malnutrition affects many children and is a leading cause of childhood mortality and non-fatal health loss. Zambia has one of the highest rates of malnutrition in the world. About half of the Zambian children are stunted while one in five is underweight. Prevalence of wasting is much lower. This article examines the determinants of nutritional status among children aged below five years in Zambia using data from a national cross-sectional survey conducted in 2006. Multivariate analysis is used to quantify the effects of several household and child-specific socioeconomic and demographic factors on nutritional status, as well as a geographic context …

Hospital Performance Evaluation In Uganda: A Super-Efficiency Data Envelope Analysis Model, Bruno Yawe

Zambia Social Science Journal

Standard Data Envelope Analysis models result in a large fraction of the observations becoming 100 percent efficient. The article measures the technical efficiency of 25 district referral hospitals from three regions of Uganda over the 1999-2003 period. It applies a super-efficiency Data Envelopment Analysis model. The application of a super-efficiency model was occasioned by the failure of standard data envelopment analysis models to rank the efficient set of hospitals which attain an efficiency score of unity. The results of the standard data envelopment analysis models indicate the existence of different degrees of technical and scale inefficiency in Uganda’s district referral …

จุฬาฯ วันนี้ โรงเรียนสาธิตจุฬาลงกรณ์มหาวิทยาลัยฝ่ายประถมและโรงเรียนสาธิตจุฬาลงกรณ์มหาวิทยาลัยฝ่ายมัธยม

Jamjuree Journal

No abstract provided.

เที่ยวจุฬาฯ พิพิธภัณฑ์พืชศาสตราจารย์กสิน สุวตะพันธุ์, ทวีศักดิ์ บุญเกิด

Jamjuree Journal

No abstract provided.

บันทึกจดหมายเหตุ พระอารามซึ่งพระบาทสมเด็จพระจุลจอมเกล้าเจ้าอยู่หัวทรงสถาปนา วัดราชบพิธสถิตมหาสีมารามและวัดเทพศิรินทราวาส

Jamjuree Journal

No abstract provided.

ร่มเกล้าชาวจุฬาฯ โครงการเสด็จประพาสอเมริกาในรัชกาลที่ 5, ไกรฤกษ์ นานา

Jamjuree Journal

No abstract provided.

เรื่องเล่าชาวจุฬาฯ วิทยาลัยประชากรศาสตร์, นิพนธ์ เทพวัลย์

Jamjuree Journal

No abstract provided.