• 한국수학교육학회지시리즈D:수학교육연구
• /
• 제17권4호
• /
• pp.243-266
• /
• 2013

Accompanied with ongoing calls for reform in statistics curriculum, mathematics and statistics teachers purposefully have been reconsidering the curriculum and the content taught in statistics classes. Changes made are centered around statistical inference since teachers recognize that students struggle with understanding the ideas and concepts used in statistical reasoning. Despite the efforts to change the curriculum, studies are sparse on the topic of characterizing student learning and understanding of statistical inference. Moreover, there are no tools to evaluate students' statistical reasoning in a coherent way. In response to the need for a research instrument, in a series of research study, the researcher developed a reliable and valid measure to assess students' inferential reasoning in statistics (IRS). This paper describes processes of test blueprint development that has been conducted from review of the literature and expert reviews.

• 한국학교수학회논문집
• /
• 제7권2호
• /
• pp.51-65
• /
• 2004

본 연구는 학교수학에서의 통계교육에 대한 개선방향을 탐구하기 위해 이루어졌다. 한국과 미국의 수학과 교육과정에서 통계교육의 핵심 내용을 살펴보고 학생들의 통계적 문맹을 보다 효과적으로 극복할 수 있는 통계교육의 개선 방향을 통계교육의 내용, 교수학습방법과 교사의 재교육에 대한 방안을 모색하여 보고자하였다.

• 응용통계연구
• /
• 제17권3호
• /
• pp.595-603
• /
• 2004

통계학과에서 데이터베이스 교육은 필요한가\ulcorner 데이터베이스 교육이 필요하다면 그 교육 방안은 무엇인가\ulcorner 본 연구에서는 통계학과에서 데이터베이스 교육의 필요성에 대해 논의하고 구체 적 인 교육 방안을 제안하고자 한다. 본 논문의 목적은 어떻게 통계학이라는 학문과 연관지어 데이터베이스를 교육할 수 있을 것인가에 대해 생각해보고자 하는데 있다.

• Journal of the Korean Statistical Society
• /
• 제26권3호
• /
• pp.365-382
• /
• 1997

In this paper we study the behaviors of the generalized Durbin-Watson (DW) statistics when the nonstationary seasonal time series regression model is misspecified. It is observed that when the series is seasonally integrated the generalized DW statistic for the seasonal period order autocorrelation converges in probability to zero while teh generalized DW statistic for the first order autocorrelation has nondegenerate asymptotic distribution. When the series is regularly and seasonally integrated the generalized DW for the first order autocorrelation still converges in probability to zero.

• 한국환경과학회지
• /
• 제9권1호
• /
• pp.13-18
• /
• 2000

The purpose of this study is to estimate the low-flow statistics at the mountainous watershed. The formulation for the estimation of the design low-flow statistics was obtained by means of a hydraulic approach applied to a simple conceptual model for a mountainous watershed. Three of the independent variables associated with the low-flow statistics is watershed area(A), average basin slope(S) and the base flow recession constant(K); Watershed area was measured from topographic maps and average basin slope is approximated in this study using Strahler's slope determining method. And base flow recession constant computed using Vogel and Kroll's method. Unfortunately, this method is usually unavailable at ungaged sites. In this study, recession constant at ungaged sites is estimated using graphical regression method used by Giese and Mason. The model for estimating low-flow statistics were applied to all 61 catchments in the Sumjin, Mankyung basin.

• Journal of the Korean Statistical Society
• /
• 제25권2호
• /
• pp.255-263
• /
• 1996

Let $(X_{1j}, X_{2j}, … , X_{nj}, Y_j/)$j = 1, 2, … , n, be a sample of size n on an (m + l)-dimensional vector $(X_1, X_2, … , X_m, Y)$, m .geq. 1. If $Y_{(r)}$ denote the rth order statistic from Y, then the $X_{[r:n]}$ paired with $Y_(r)$ is termed the concomitant vector of the order statistics. The general distributions of concomitant of order statistics will be found. The mean, variance and covariance of$X_{[r:n]}$ Will be studied. Then we will apply the results to the multivariate normal variate case.e.

• 응용통계연구
• /
• 제16권2호
• /
• pp.395-406
• /
• 2003

본 논문에서는 신뢰성분석에서 고려되는 NBU class에 관한 새로운 검정법을 제안하였다. 제안된 검정통계량은 순서통계량의 선형함수의 형태로 이루어져있고 대표본 뿐만 아니라 소표본에서도 쉽게 적용될 수 있음을 보였다. 소표본인 경우에는 Monte Carlo 시뮬레이션을 통하여 제안된 검정통계량의 검정력을, 대표본인 경우에는 점근상대효율을 Hollander와 Proschan(1972)의 검정통계량과 비교하여 보았으며 검정통계량의 일치성도 보였다.

• Communications for Statistical Applications and Methods
• /
• 제14권3호
• /
• pp.649-665
• /
• 2007

The improvement of quality is a continuous process and one of the main objectives of the Statistical Strategy launched by the Korea National Statistical Office (KNSO) is the enhancement of the quality of Korea national statistics. In this paper, we define the processing statistic, classify the Korea national processing statistics, and develop the quality indicators and check list for assessing the national processing statistics of Korea. During its development, the indicators has been discussed with the processing statistic managers of the KNSO and the checklist tested in a pilot study covering a variety of processing statistic areas.

• 환경영향평가
• /
• 제6권1호
• /
• pp.135-149
• /
• 1997

Environmental issues are currently in the forefront of the political and economic area both globaly and nationally. In the all spheres of socio-economic development and policy, it is suggested that there are need, to measure environmental impacts and to produce and disseminate environmental statistics systematically for environmentally sound and sustainable development. Specially, because environmental statistics encompass a wide spectrum of sectors from the natural to the social sciences and are dispersed among various agencies, an organized approach and compilation methods in complicated fields such as environment are required. This article includes the methodology on the framework for development of environmental statistics to advance korean environmental statistics.

• 정보관리연구
• /
• 제43권3호
• /
• pp.161-180
• /
• 2012

본 논문에서는 최근 연구가 활성화되고 있는 전자저널 이용통계의 개념과 필요성에 대해 알아보고 COUNTER 그룹에 의해 진행 중인 이용 지수 프로젝트(Journal Usage Factor Project)의 동향을 파악하였다. 또 생성 주체별 이용통계 데이터가 가지는 장점 및 한계점을 살펴보았고, 31개 출판사의 실제 이용통계 데이터를 분석하여 다양한 오류와 문제 유형을 발견함으로써 출판사 생성 이용통계 데이터의 품질이 완전히 신뢰할만한 수준이 아님을 지적하였다.