A method of score conversion through item statistics

Psychometrika ◽  
1957 ◽  
Vol 22 (2) ◽  
pp. 185-188 ◽  
Author(s):  
Frances Swineford ◽  
Chung-Teh Fan
Keyword(s):  
Item Statistics

The Problem of Generalizing to a Language Population: A "Random" Controversy

1996 ◽  
Vol 39 (2) ◽  
pp. 406-413 ◽  
Author(s):  
Carol L. Leonard ◽  
Darla Orchard
Keyword(s):  
Normal Populations ◽  
Item Statistics ◽  
Language Research

The rationale behind the use of item statistics as well as objections to their use are reviewed. It is argued that investigators conducting language research with disordered populations should follow the example of those conducting language research with normal populations and consider calculating item statistics if they wish their results to generalize beyond the specific items tested.

Effects of automatic item eliminations based on item test analysis

2007 ◽  
Vol 31 (3) ◽  
pp. 247-252
Author(s):  
Jaap H. J. Muntinga ◽  
Henk A. Schuil
Keyword(s):  
The Other ◽  
Cohort Effects ◽  
Test Results ◽  
Test Analysis ◽  
Course Content ◽  
Elimination Procedure ◽  
Item Statistics ◽  
Second Year ◽  
Automatic Elimination

Item test analysis is an aid to identify items that need to be eliminated from an assessment. An automatic elimination procedure based on item statistics, therefore, could help to increase the quality of a test in an objective manner. This was investigated by studying the effect of a standardized elimination procedure on the test results of a second-year course over a period of 6 successive years in 1,624 candidates. Cohort effects on the item elimination were examined by determining the number of additional items that had to be eliminated from three different tests in 3 successive academic years in two cohorts. The items that were part of more than one test and had to be eliminated according to the procedure in at least one of the tests appeared to have to be retained according to the same procedure in most of the other tests. The procedure harmed the high scoring students relatively more often than the other students, and the number of eliminated items appeared to be cohort dependent. As a consequence, automatic elimination procedures obscure the transparency of the grading process unacceptably and transform valid tests into inadequate samples of the course content.

Do Older People Receive Equitable Private Psychiatric Service Provision Under Medicare?

2001 ◽  
Vol 35 (5) ◽  
pp. 626-630 ◽  
Author(s):  
Brian M Draper ◽  
Annette Koschera
Keyword(s):  
Older People ◽  
Service Provision ◽  
Psychiatric Service ◽  
Age Groups ◽  
Psychiatric Services ◽  
Age Group ◽  
Younger Adults ◽  
Item Statistics ◽  
Per Capita ◽  
Medicare Expenditure

Objective: The objective of this study is to determine the 1998 rates, types, regional variation and Medicare expenditure of private psychiatry services for older people in Australia, as compared with younger adults and with 1985–1986 data. Method: Medicare Benefits Schedule Item Statistics for the psychiatric item numbers 300–352 and item 14224 were obtained from the Health Insurance Commission for each State and Territory. The items were examined in the age groups 15–64 years, 65 years and over and 75 years and over. Main outcome measures were per capita service provision by age group, State and Territory and Medicare expenditure by age group. Results: During 1998, 6.4% (5765.6 per 100 000) of private psychiatric services were to patients aged > 64 years. Patients aged 15–64 received 2.7 times the number of psychiatric services per capita than patients > 64 and 3.6 times that of patients aged > 74 years. Patients aged > 64 received more hospital and nursing home consultations, home visits and electroconvulsive therapy per capita, while younger adults used more office-based consultations, longer consultations, and group therapy. Victoria had the highest per capita rate (7659.2 per 100 000) and the Northern Territory the lowest (540.4 per 100 000), although the highest proportion of services to older patients was in Western Australia. Per capita the proportion of Medicare expenditure allocated to adults aged less than 65 years was 4.1 times that for adults over 64 years. Conclusions: Private psychiatric service provision to older people is inequitable when compared with younger adults. The proportion of Medicare private psychiatry expenditure on older adults has declined since 1985–1986.

scholarly journals The Use of Item Statistics in the Calibration of an Item Bank

1986 ◽  
Vol 10 (3) ◽  
pp. 231-237 ◽  
Author(s):  
Dato N. M. de Gruijter
Keyword(s):  
Item Bank ◽  
Item Statistics

scholarly journals Development and validation of a scale evaluating pregnant women's breastfeeding competency in third trimester: Breastfeeding Competency Scale(BCS)

2020 ◽  
Author(s):  
Yu Wu ◽  
Ying Wang ◽  
Jiazhen Hu ◽  
Yan Dang ◽  
Yuanyuan Zhang ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Pregnant Women ◽  
Exploratory Factor Analysis ◽  
Model Matching ◽  
Validity And Reliability ◽  
Third Trimester ◽  
Factor Analytic Model ◽  
Item Statistics ◽  
New Instrument ◽  
Confirmatory Factor

Abstract Background: Breastfeeding plays an important role in the early stages of humans and throughout the development process. Breastfeeding competency is a self-assessment of pregnant women's overall competency to breastfeeding which could predict behaviors of pregnant women’ breastfeeding. However, a valid and reliable scale to assess the breastfeeding competency has not yet been developed and validated. This study was designed to develop and validate an assessment scale designed to assess the pregnant women's breastfeeding competency in third trimester: Breastfeeding Competency Scale(BCS).Methods: The BCS was developed and validated over three phases between September 2018–September 2019 which include item statistics, exploratory factor analysis(EFA), content validation, internal consistency assessment, split-half reliability and confirmatory factor analysis.Results: Item statistics and exploratory factor analysis resulted in 38 items, 4 factors that explained 66.489% of total variance. The Cronbach’s α coefficient in total scale and 4 factors were 0.970, 0.960, 0.940, 0.822, 0.931 respectively. The split-half reliability of BCS was 0.894, 0.890. Confirmatory factor analytic model showed the 4-factor model matching the data well.Conclusions: The BCS was a new instrument with certain validity and reliability for assessing the breastfeeding competency of pregnant women in third trimester.

Differences in Item Statistics Between Positively and Negatively Worded Stems on Histology Examinations

HAPS Educator ◽  
2019 ◽  
Vol 23 (3) ◽  
pp. 476-486
Author(s):  
Sara Klender ◽  
◽  
Andrew Ferriby ◽  
Andrew Notebaert ◽  
◽  
...  
Keyword(s):  
Item Statistics
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