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On the identifiability of parameters in Thurstone's multiple factor analysis

AbstractIn econometric literature a parameter in a theoretical model has been called identifiable if it can be uniquely determined in terms of the joint probability distribution of the observed variables.

出版机构:Springer Verlag

刊物名称:Psychometrika

出版时间:1950

ISSN:0033-3123

数据源:报刊文摘

Loess Formations of the Mississippi Valley

The loess deposits of the Mississippi Valley area are widespread and have been extensively studied. In the upper valley they have definite stratigraphic relationships to the drift sheets.

出版机构:University of Chicago

刊物名称:The Journal of Geology

出版时间:1950

ISSN:0022-1376

数据源:报刊文摘

Niagaran Reefs of the Great Lakes Area

These potentials are the ability to erect rigid topographic structures by frame-building, sediment-retention and binding, and to create a wave-resistant structure. These have been the basic properties of reef-building biota throughout all time.

出版机构:University of Chicago

刊物名称:The Journal of Geology

出版时间:1950

ISSN:0022-1376

数据源:报刊文摘

Quartz Crystals with Clay and Fluid Inclusions

Quartz crystals with fluid and red-clay inclusions, characterized by a stout habit, double terminations, a more or less smoky or amethystine color, and high transparency, have been found in the upper Piedmont of North Carolina.

出版机构:University of Chicago

刊物名称:The Journal of Geology

出版时间:1950

ISSN:0022-1376

数据源:报刊文摘

High-Temperature Albite and Contiguous Feldspars

Synthetic albite is found to have X-ray and optical properties different than those of the very pure natural albites from pegmatites, but these natural albites can, by heating, be converted into a form identical with the synthetic product.

出版机构:University of Chicago

刊物名称:The Journal of Geology

出版时间:1950

ISSN:0022-1376

数据源:报刊文摘

The Measurement of the Shear Strength of Soils

Synopsis

Tests are described for determining the shear strength parameters c and ? of the principal soil types under controlled conditions of pore pressure dissipation.

出版机构:Thomas Telford Ltd

刊物名称:Géotechnique

出版时间:1950

ISSN:0016-8505

数据源:报刊文摘

The Use of Shear-Strength Measurements in Practical Problems

Synopsis

This Paper describes the methods used in Great Britain for the analysis of stability problems in which for the analysis of stability problems in which the shear strength of soils is used.

出版机构:Thomas Telford Ltd

刊物名称:Géotechnique

出版时间:1950

ISSN:0016-8505

数据源:报刊文摘

Vane Tests in a Norwegian Quick-Clay

Synopsis

In the harbour of Horten, in Norway, various geotechnical investigations have been carried out in a stratum of post-glacial silty clay about 30 metres thick.

出版机构:Thomas Telford Ltd

刊物名称:Géotechnique

出版时间:1950

ISSN:0016-8505

数据源:报刊文摘

The Measurement of the Surface Bearing-Capacity of Soils in the Study of Earth-Crossing Machinery

Synopsis

Methods of measuring the surface bearing-capacity of soils have been studied in relation to the design of tractors.

出版机构:Thomas Telford Ltd

刊物名称:Géotechnique

出版时间:1950

ISSN:0016-8505

数据源:报刊文摘

Silurian Reefs of Gotland

Core drillings on Gotland in 1946 and 1947 led to a re-examination and revision of our conception of the reefs of Gotland, their structure, reef-building organisms, and appearance. A short report on the results of the investigation is submitted below.

出版机构:University of Chicago

刊物名称:The Journal of Geology

出版时间:1950

ISSN:0022-1376

数据源:报刊文摘