A Non-Parametric Test for the Reliability of the Difference Between Two Proportions

1953 ◽  
Vol 36 (1) ◽  
pp. 127-130 ◽  
Author(s):  
J. A. Gengerelli ◽  
John L. Michael
Keyword(s):  
Parametric Test ◽  
The Difference ◽  
Non Parametric

scholarly journals Testing for equality of distributions using the concept of (niche) overlap

2021 ◽  
Author(s):  
Judith H. Parkinson-Schwarz ◽  
Arne C. Bathke
Keyword(s):  
Basic Assumption ◽  
Type I Error ◽  
Test Procedure ◽  
Niche Overlap ◽  
Relative Effect ◽  
Type I ◽  
Underlying Distribution ◽  
Parametric Test ◽  
Higher Power ◽  
Non Parametric

AbstractIn this paper, we propose a new non-parametric test for equality of distributions. The test is based on the recently introduced measure of (niche) overlap and its rank-based estimator. As the estimator makes only one basic assumption on the underlying distribution, namely continuity, the test is universal applicable in contrast to many tests that are restricted to only specific scenarios. By construction, the new test is capable of detecting differences in location and scale. It thus complements the large class of rank-based tests that are constructed based on the non-parametric relative effect. In simulations this new test procedure obtained higher power and lower type I error compared to two common tests in several settings. The new procedure shows overall good performance. Together with its simplicity, this test can be used broadly.

scholarly journals Non-Parametric Test Analysis for the Questionnaire Investigation on the High School Teachers’ Work Load

2018 ◽  
Vol 9 (5) ◽  
pp. 33
Author(s):  
Yasuo Ishii ◽  
Daisuke Takeyasu ◽  
Tatsuya Oyanagi ◽  
Kazuhiro Takeyasu
Keyword(s):  
High School ◽  
High School Teachers ◽  
Social Worker ◽  
Work Load ◽  
School Teachers ◽  
Test Analysis ◽  
Parametric Test ◽  
School Social Worker ◽  
Miyagi Prefecture ◽  
Non Parametric

High School teachers in Japan are sending very busy days on their daily works including teaching, support for the club activities and deskwork. Among them, they share a lot of time for managing the club actives of students compared with other countries. In that area, professionals can make instruction much better than teachers for the special sports like Judo and Kendo (Japanese fencing) etc. School Social Worker can coordinate the professionals out of school and can help teachers by decreasing their burden on that area. There are few related papers concerning the support of club activities by utilizing the professionals outside. In this paper, a questionnaire investigation is executed to the five High Schools at Miyagi Prefecture in Japan in order to clarify their current condition and their consciousness, and to seek the possibility of utilizing school social worker for their support. Fundamental statistical analysis and Non-Parametric Test Analysis are performed. As for Q2”Consciousness for the daily works” and its related analysis, Null Hypotheses were rejected for 6 cases out of 60. As for Q3”Consciousness for guiding the club activities” and its related analysis, Null Hypotheses were rejected for 5 cases out of 48. Various cases should be investigated here after.

scholarly journals Non-parametric test to describe response time and eye movement distributions in visual search

2010 ◽  
Vol 10 (7) ◽  
pp. 1317-1317
Author(s):  
B. Richard ◽  
D. Ellemberg ◽  
A. Johnson
Keyword(s):  
Visual Search ◽  
Response Time ◽  
Eye Movement ◽  
Parametric Test ◽  
Non Parametric

A seasonal decomposition of the estimated size of a penguin population at Phillip Island, Australia

2005 ◽  
Vol 53 (2) ◽  
pp. 111 ◽  
Author(s):  
H.-C. Yang ◽  
L. E. Chambers ◽  
R. M. Huggins
Keyword(s):  
Population Size ◽  
Sampling Methods ◽  
Seasonal Effects ◽  
Trend Component ◽  
Seasonal Time Series ◽  
The Difference ◽  
Weaker Conditions ◽  
Seasonal Decomposition ◽  
Parametric Estimate ◽  
Non Parametric

Modern non-parametric methods allow the estimation of a population size under weaker conditions than the classical methods if there are frequent capture occasions. Here a non-parametric estimate of the number of penguins occupying Summerland Beach, Phillip Island, Australia, was computed. This estimator did not assume equal catchability of individuals, did not assume a parametric form for the population size as a function of time and allowed individuals to leave and re-enter the population. The resulting estimate was then decomposed into a seasonal component and a trend component using seasonal time series models to facilitate the understanding of the changes in the population size. The estimated seasonal effects quantified the difference between the number of penguins in the breeding and non-breeding season, and the trend component indicated an increase in the population size over the period of the study. The estimates of the number of penguins are shown to be consistent with other estimates obtained from a variety of sampling methods and statistical analyses.

Fibrinogen In Liver Cirrhosis. Lack Of Correlation Between Soluble Fibrin Monomer Complexes And Fibrinopeptide A Levels

1981 ◽  
Author(s):  
S Coccheri ◽  
P M Mannucci ◽  
G Palareti ◽  
M Cattaneo ◽  
M Poggi ◽  
...  
Keyword(s):  
Liver Cirrhosis ◽  
Liver Biopsy ◽  
Half Life ◽  
Collaborative Study ◽  
Gel Filtration ◽  
Fibrinopeptide A ◽  
Confidence Limits ◽  
Parametric Test ◽  
Soluble Fibrin ◽  
The Difference

In this collaborative study we have investigated the coexistence of two different markers of fibrinogen to fibrin conversion in 19 patients with liver cirrhosis, confirmed with liver biopsy, and classified according to standardized criteria into 11 moderate and 8 severe cases. Sepharose gel filtration of plasma allowed separation of fibrinogen-like material (FLM) into high m.w. (HMWF), peak, and low m.w. (LMWF) fractions, quantitated as percent (w/w) of the total FLM eluted. FPA was assayed radioimmunologically.HMWF was markedly increased in the whole group of cirrhotics (av ± SD 10.4% ± 2.77) , and in both moderate and severe patients, vs controls (6.9% ± 1.39; n=16; p < 0.01 for each comparison). LMWF was moderately increased in patients (6.8% ± l.84) vs controls (5.3% ± 1.35; p < 0.05).FPA levels (controls: median (m) ng/ml 2.2; m confidence limits (mcl) 1.4-2.5; range (r) < 0.6 to 4.1) showed an increase in cirrhotics (m 2.8; mcl 2.64-3.35, r<0.6 to 94) but the difference was not statistically significant using a non-parametric test. However, in 6 out of 19 patients FPA values exceeded av ± 2 SD of controls (av ± SD 2.05 ± 1.15). No significant correlations were found between FPA and HMWF or LMWF levels.The lack of correlation between FPA and HMWF although possibly related to half-life differences, suggests that, besides thrombin effect, other mechanisms for excess formation and/or accumulation of HMWF, as dysproteinaemia, dys- fibrinogenaemia, or impaired clearance, should be considered.

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