split-half correlation — noun a correlation coefficient calculated between scores on two halves of a test; taken as an indication of the reliability of the test • Syn: ↑chance half correlation • Topics: ↑statistics • Hypernyms: ↑correlation coefficient, ↑coefficient of… … Useful english dictionary
correlation coefficient — noun a statistic representing how closely two variables co vary; it can vary from 1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation) what is the correlation between those two variables? • Syn:… … Useful english dictionary
coefficient of correlation — noun a statistic representing how closely two variables co vary; it can vary from 1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation) what is the correlation between those two variables? • Syn:… … Useful english dictionary
international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… … Universalium
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… … Universalium
Health and Disease — ▪ 2009 Introduction Food and Drug Safety. In 2008 the contamination of infant formula and related dairy products with melamine in China led to widespread health problems in children, including urinary problems and possible renal tube… … Universalium
Heritability — is the proportion of phenotypic variation in a population that is due to genetic variation between individuals. Phenotypic variation among individuals may be due to genetic, environmental factors, and/or random chance[1]. Heritability analyzes… … Wikipedia
Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… … Universalium
animal learning — ▪ zoology Introduction the alternation of behaviour as a result of individual experience. When an organism can perceive and change its behaviour, it is said to learn. That animals can learn seems to go without saying. The cat that… … Universalium