Coefficient Sign Prediction Methods (CSPM) is a method used to determine the sign of a coefficient in a regression model. Working of Coefficient Sign Prediction Methods (CSPM) It works by using the sign of the correlation between two variables to predict the sign of the coefficient associated with them when regressed against each other. This […]
Class intervals – frequency distribution is a statistical method of organizing data that involves grouping together values which are similar in some way. The intervals of the frequency distribution of a set of observations. Working of Class Intervals It works by dividing the data into subgroups (or classes) based on the frequency of occurrence, then […]
Discriminant analysis is a classification technique that is commonly used to classify observations into one of two or more categories. This method is especially useful when the observations are numerical variables and can be used to separate groups of observations from each other based on the characteristics present in their data points. Goal of Discriminant […]
The Chi-squared test for trend is a statistical test used to analyze the relationship between two categorical variables. It is applied to a two-dimensional contingency table, also known as a cross-tabulation table, which shows how many individuals or items fall into each of the combinations of two variables. Applications of Chi-squared Test for Trend The […]
Chi-squared distance is a measure of dissimilarity between two distributions, often used in categorical variables. It measures the “distance” between two distributions based on how similar or different their probability mass functions are. How to Calculate? The chi-squared distance is calculated by subtracting the probability of each category from the conditional probability. The result is […]
Census is defined as the process of systematically acquiring and recording information about the members of a given population. This process involves collecting data about individuals, such as their age, gender, occupation, level of education, income level, marital status, and other personal characteristics. Purpose of Census The purpose of a census is to provide an […]
Censored Regression Models are a general class of models used to analyze truncated and censored data, which is data that has been restricted in some way so as to obscure certain values or ranges of values. Censored regression models, also known as truncated regression models, are statistical techniques used to analyze data that contains outliers and/or […]
The Ceiling effect is a term used to describe the circumstances when the scores of many participants in a study reach their maximum potential. This phenomenon may occur in various types of research, such as psychological tests and surveys. Ceiling Effect in Psychology In psychology, the ceiling effect is an indication that test participants are […]
Causality investigations in medicine are studies looking into the interactions of different factors, causes and effects of certain medical conditions. They offer a way to uncover the underlying drivers behind diseases, as well as risk factors associated with them. In particular, they can help researchers identify potential treatments that may be effective at treating or […]
Catastrophe Theory is a mathematical concept used to describe how small, incremental changes in independent variables can lead to swift and dramatic changes in the result of a system. This theory was first developed by French mathematician René Thom in 1972, who sought to explain why seemingly small events could sometimes have drastic consequences. Applications […]
