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In 1946, UNISA was given a new role as a distance education university, and today it offers certificate, diploma and degree courses [7] up to doctoral level. In January 2004, UNISA merged with Technikon Southern Africa (Technikon SA, a polytechnic) and incorporated the distance education component of Vista University (VUDEC).
The Strata Exam is a CompTIA certification. It covers the fundamentals of various other areas of IT study. Below is a chart of each section of the Strata test and how ...
Accordingly, authority control is an example of controlled vocabulary and of bibliographic control. While in theory any piece of information is amenable to authority control such as personal and corporate names, uniform titles , series names, and subjects, [ 2 ] [ 3 ] library catalogers typically focus on author names and titles of works.
A library school is an institution of higher learning specializing in the professional training of librarians. As of 14 February 2022 [update] there are 64 American Library Association -accredited Library science programs in Canada and the United States [ 1 ] and as of July 2014 [update] , 16 UK institutions offering CILIP -accredited programmes.
Stratification is used in quota sampling, a non-random method in which the researcher identifies strata of the population and pre-determines how many participants are needed from each stratum. [1] This is considered a better method than convenience sampling , as it attempts to ensure different strata are properly represented.
In statistics, the Cochran–Mantel–Haenszel test (CMH) is a test used in the analysis of stratified or matched categorical data.It allows an investigator to test the association between a binary predictor or treatment and a binary outcome such as case or control status while taking into account the stratification. [1]
Graphic breakdown of stratified random sampling. In statistics, stratified randomization is a method of sampling which first stratifies the whole study population into subgroups with same attributes or characteristics, known as strata, then followed by simple random sampling from the stratified groups, where each element within the same subgroup are selected unbiasedly during any stage of the ...
The essence of the method is mapping of strata based on identification of surfaces which are assumed to represent time lines (e.g. subaerial unconformities, maximum flooding surfaces), thereby placing stratigraphy in chronostratigraphic framework allowing understanding of the evolution of the Earth's surface in a particular region through time.