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In psychology, association can sometimes be synonymous with correlation. When something is referred to as having positive association or positive correlation, it describes high or low levels of one variable happen with high or low levels of another variable.
A correlation coefficient is a numerical measure of some type of linear correlation, meaning a statistical relationship between two variables. [ a ] The variables may be two columns of a given data set of observations, often called a sample , or two components of a multivariate random variable with a known distribution .
The correlation coefficient is +1 in the case of a perfect direct (increasing) linear relationship (correlation), −1 in the case of a perfect inverse (decreasing) linear relationship (anti-correlation), [5] and some value in the open interval (,) in all other cases, indicating the degree of linear dependence between the variables. As it ...
PsyCap has positive correlation with desired employee attitudes, behaviors and performance. [9]A meta-analysis of 51 independent samples found strong, significant, positive relationship between PsyCap and desirable attitudes (e.g., satisfaction, commitment, and well-being), behaviors (e.g., citizenship) and performance (self, supervisor rated, and objective) and a negative relationship with ...
The correlation coefficient ρ, expressed as an autocorrelation function or cross-correlation function, depends on the lag-time between the times being considered.Typically such functions, ρ(t), decay to zero with increasing lag-time, but they can assume values across all levels of correlations: strong and weak, and positive and negative as in the table.
The item–total correlation is the correlation between a scored item and the total test score. It is an item statistic used in psychometric analysis to diagnose assessment items that fail to indicate the underlying psychological trait so that they can be removed or revised.
The halo effect is a perception distortion (or cognitive bias) that affects the way people interpret the information about someone with whom they have formed a positive gestalt. [11] An example of the halo effect is when a person finds out someone they have formed a positive gestalt with has cheated on their taxes.
The coefficient of multiple correlation is known as the square root of the coefficient of determination, but under the particular assumptions that an intercept is included and that the best possible linear predictors are used, whereas the coefficient of determination is defined for more general cases, including those of nonlinear prediction and those in which the predicted values have not been ...