The number of heads does not vary, and heritability is a measure of covariation (I use the term "covariation" in a non-technical sense here).    From Wordnik.com.  [ScienceBlogs Channel : Life Science] Reference

From covariation to causation: A causal power theory.    From Wordnik.com.  [Causal Reasoning] Reference

What is being measured is covariation, not explanation.    From Wordnik.com.  [Matthew Yglesias » The Impact of Title IX] Reference

Cartoon explains the difference between causality and covariation.    From Wordnik.com.  [Boing Boing] Reference

The role of covariation versus mechanism information in causal attribution.    From Wordnik.com.  [Causal Reasoning] Reference

The way covariation estimates are computed and interpreted is dependent on the assumed causal model. p.    From Wordnik.com.  [Causal Reasoning] Reference

Espen sez, I thought you would appreciate this cartoon that explains the difference between covariation and causality.    From Wordnik.com.  [Boing Boing] Reference

Once a hypothetical causal model is in place, we can start estimating causal strength by observing covariation information.    From Wordnik.com.  [Causal Reasoning] Reference

But even if a statistical model based solely on difference terms can capture the short-run dynamics in a process, it has less to say about the long-run covariation of the variables.    From Wordnik.com.  [The Prize in Economics 2003 - Information for the Public] Reference

The covariation of reference with alternative facts about the context could, however, correspond to our imperfect knowledge of the settled (pre-semantic) facts that determine meaning.    From Wordnik.com.  [Names] Reference

Trans-ordinal laws are what we now call ˜emergent laws,™ fundamental, irreducible laws that describe a synchronic, noncausal covariation of an emergent property and its lower-level emergent base.    From Wordnik.com.  [Emergent Properties] Reference

In their business-cycle model, realistic fluctuations in the rate of technological development brought about a covariation between GDP, consumption, investments and hours worked close to that observed in actual data.    From Wordnik.com.  [The Prize in Economics 2004 - Press Release] Reference

The model's so-called beta values, which measure the degree of covariation between the return on a specific share and the stock market as a whole, are now a standard tool in the analysis of financial markets and investment decisions.    From Wordnik.com.  [The Prize in Economics 1990 - Presentation Speech] Reference

He adverts to the psychosemantics sometimes appealed to by certain representationalists (Dretske and Tye in particular), arguing that neither indicator/covariation semantics nor teleosemantics will predict that Cynthia is representing redness.    From Wordnik.com.  [Representational Theories of Consciousness] Reference

Second, because the underlying model starts with the covariation between all races, you will see very small changes in the trend estimates for every race (usually no more than a tenth of a percent or two) whenever we add a new poll to any race.    From Wordnik.com.  [Upgrading Pollster's Trend Lines: The Kalman Filter] Reference

But Kelly's covariation model has some limitations.    From Wordnik.com. Reference

Individual fingertip contact points and covariation of digit pair contact points.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Armbruster WS, Schwaegerle KE (1996) Causes of covariation of phenotypic traits among populations.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

The basic principle of the covariation model states that the effect is attributed to one of the causes which co-varies over time.    From Wordnik.com. Reference

The covariation model considers three major types of information to make an attribution decision and to observe a person's behavior.    From Wordnik.com. Reference

Broughton RE, Reneau PC (2006) Spatial covariation of mutation and nonsynonymous substitution rates in vertebrate mitochondrial genomes.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

The assessment of covariation in firing rates and reactivation within an experimental session with the EV method was previously described.    From Wordnik.com.  [PLoS Biology: New Articles] Reference

A number of other regions showed significantly negative covariation with behavioural performance, and may relate to 'default network' activity.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Major covariation between the bill and cranium lies in the difference in orbit orientation relative to bill-length and in the angle between bill and cranium.    From Wordnik.com.  [BioMed Central - Latest articles] Reference

Northern Hemisphere temperature anomalies (empty triangles), and local temperature anomalies in San Miguel de Tucuman, Argentina (empty circles) show a significant covariation.    From Wordnik.com.  [WHAT REALLY HAPPENED] Reference

Finally, the correlation between a row of the activity matrix A and a row of the target matrix T described the positive or negative covariation of drug activity with gene expression.    From Wordnik.com.  [Citizendium, the Citizens' Compendium - Recent changes [en]] Reference

Two, we show that allostatic load, an index of chronic stress, conveys a significant proportion of the covariation between childhood deprivation and an adult's working memory performance.    From Wordnik.com.  [Slate Magazine] Reference

Second, we analyzed the between-participant covariation in the magnitude of multisensory integration (as measured with the behavioural responses), and the magnitude of BOLD signal change.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Blue clusters show similar regions in the right occipital cortex with a preference for left over right visual stimulation, and a significant covariation of BOLD with the behavioural measures of multisensory integration.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Red clusters show left hemisphere occipital regions showing both higher activation for right than for left visual distractors, and a significant covariation of BOLD signal change with the behavioural measures of multisensory integration.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

If so, can’t some numeric analysis covariation? be made?.    From Wordnik.com.  [Post-1980 Proxies #3: Chesapeake Bay Mg/Ca « Climate Audit] Reference

· correlation coefficients (Pearson, Fechner) and covariation.    From Wordnik.com.  [Softpedia - Windows - All] Reference

For instance, it may be that, as with nomic covariation theories of meaning (Fodor.    From Wordnik.com.  [The Language of Thought Hypothesis] Reference

On other notes more general, strategic and “soft” 1. Shouldn’t there be some numerical analysis of covariation for RW, MxD? r value, other metric, etc?.    From Wordnik.com.  [More on Urals and Tornetrask « Climate Audit] Reference

Stebbing M, Hopper JL, Hoang HN, Giles GG (2000) Familial patterns of covariation for cardiovascular risk factors in adults: The Victorian Family Heart Study.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Instead, he suggests that his account of perceptual representations can be combined with a version of the causal (or covariation) theory of intentional content developed by Fodor (1990.    From Wordnik.com.  [His Name Was Do Re Mi] Reference

(plus signs), Northern Hemisphere temperature anomalies (empty triangles), and temperature anomalies measured in San Miguel de Tucuman, Argentina, (empty circles) show a statistically significant covariation.    From Wordnik.com.  [WHAT REALLY HAPPENED] Reference

Talks on covariation in intro physics courses.    From Wordnik.com.  [Archive 2007-01-01] Reference

(5) Finally, the correlation between a row of the activity matrix A and a row of the target matrix T described the positive or negative covariation of drug activity with gene expression.    From Wordnik.com.  [Citizendium, the Citizens' Compendium - Recent changes [en]] Reference

Fechner) and covariation, and cross-tabulation.    From Wordnik.com.  [ThomasNet Industrial Newsroom - Today's New Product News] Reference