The homogeneity problem in statistics

1987 ◽  
Vol 21 (1) ◽  
pp. 21-36
Author(s):  
Vladislav V. Shvyrkov ◽  
Arch C. Davis
Keyword(s):  
Homogeneity Problem

Homogeneity problem for basis expansion of functional data with applications to resistive memories

2020 ◽  
Author(s):  
Ana M. Aguilera ◽  
Christian Acal ◽  
M. Carmen Aguilera-Morillo ◽  
Francisco Jiménez-Molinos ◽  
Juan B. Roldán
Keyword(s):  
Functional Data ◽  
Basis Expansion ◽  
Homogeneity Problem

scholarly journals WHAT IS THE HOMOGENEITY OF OUR UNIVERSE TELLING US?

1999 ◽  
Vol 14 (24) ◽  
pp. 1661-1665 ◽  
Author(s):  
MARK TRODDEN ◽  
TANMAY VACHASPATI
Keyword(s):  
Classical Physics ◽  
Deterministic Solution ◽  
Probabilistic Solution ◽  
The Universe ◽  
Homogeneity Problem

The universe we observe is homogeneous on super-horizon scales, leading to the "cosmic homogeneity problem". Inflation alleviates this problem but cannot solve it within the realm of conservative extrapolations of classical physics. A probabilistic solution of the problem is possible but is subject to interpretational difficulties. A genuine deterministic solution of the homogeneity problem requires radical departures from known physics.

Empirical Contribution to the Question of Sex-Dependent Inheritance of Spatial Ability

1994 ◽  
Vol 78 (2) ◽  
pp. 407-417 ◽  
Author(s):  
Georg Gittler ◽  
Oliver Vitouch
Keyword(s):  
Spatial Ability ◽  
Three Dimensional ◽  
Recessive Gene ◽  
Test Material ◽  
Empirical Correlations ◽  
Filial Generation ◽  
Dimensional Cube ◽  
Predicted Values ◽  
Homogeneity Problem ◽  
Empirical Contribution

The X-linked recessive gene hypothesis, a theory to predict the mode of genetic inheritance of spatial ability, was tested using a new Rasch-calibrated space test, the Three-dimensional Cube Test (Gittler, 1990). This allowed solving the homogeneity problem (insufficient unidimensionality of test material) by which earlier research in this field was affected. The empirical correlations from our sample of 134 families were compared with the theoretically predicted values. Present data do not corroborate the model; however, the problems of its general falsification are discussed. The fact that differences in performance in favour of males exist in the parental generation but not in the filial generation accentuates the importance of environmental factors.

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