Empirical Construct

Accuracy – The degree to which calculations or estimations are in proximity to exact or real values. See also: Precision Base Level – Prior to drawing conclusion from research data, it is frequently necessary to be informed about what is called the base level, conditions with which the research begins. For example, when, after an advertising … Read more

Descriptive Statistics

Correlation Matrix – A square in which all correlation-coefficients of a study are located. All quantified variables are correlated to one another. The purpose is to discover unanticipated, hidden relations. Many such correlation-coefficient are irrelevant, nonsense, or involve pseudo-relations. For example: frequency with soup is purchased as related to shoe size in a sample of housewife. … Read more


Point Cloud – The correlation of points in a scatter diagram. See also: Scatter diagram Profile – Graphic representation of research results in which the objective is to show clearly the differences between elements or parts. Profile Score – The individual score in a profile. See also: Profile Quadrant – Square. Statistical data are often displayed by … Read more

Curvilinear Relation

Poisson Distribution – A special instance of a binomial distribution, in which the probability for a specific event is extremely small (for example: an accident). See also: Binomial distribution Probability Distribution – A distribution that expresses the probability of value X as a function of X. See also: Binomial distribution Sample distribution – Syn: Sampling distribution … Read more

Vital Statistic

Time Series – A set of observations (data that are classified according to a unit of time. For example: monthly sales. See also: Time series Analysis Time Series Analysis – Techniques that are employed in an attempt to comprehend alterations in time series. This may result in an improvement of predictive techniques. See also: Time Series … Read more


Base Period – A period of time during which data have been collected, data that are used as a base for an index number or for some other fractional number. The base period is usually one year. However, it can also be one day or average of a number of years. Bivariate – Relating to, … Read more

Company Statistics

Attribute – A qualitative characteristic of an individual, usually applied to distinguish a variable (or other quantitative characteristic). For example,sex is an attribute, but age a variable. Attributes are often dichotomous but not in every instance (for example, blood groups). See also: Variable/Dichotomy Atypical – A case, person, object or datum that clearly deviates from norm. … Read more

Job Analysis

Commercial Psychology – The study of consumer behavior and industrial communications. The following are included in this subject: mass communication, creative formation of advertising messages, media models, integration of the communication mix into the marketing mix. See also: Mass Communication/Consumer behavior/Psychology Cultural Psychology – Poorly defined psychological specialty. It refers to study of the influences … Read more