Interquartile range : The interquartile range (IQR) is a measure of the dispersion of a dataset. It is calculated as the difference between the 75th and 25th percentiles of a dataset. These percentiles are also known as the first and third quartiles, hence the name of the measure. For example, consider the following dataset: 1, […]

Interpretability : Interpretability is a crucial aspect of many decision-making processes, particularly in fields such as artificial intelligence (AI) and machine learning. It refers to the ability to understand and explain the reasoning behind the decisions made by a model or algorithm. One example of interpretability in action is in the field of healthcare. When […]

Interpolation : Interpolation is a mathematical method that is used to estimate a value within the range of a set of known data points. It is often used in computer graphics, signal processing, and other mathematical and scientific fields. One example of interpolation is when you have a set of data points that represent the […]

Interior analysis : Interior analysis is a method used in regression analysis to assess the quality of a model. It involves looking at the relationships between different predictor variables and the dependent variable, and determining how well the model captures these relationships. To understand how interior analysis works, let’s consider a simple example. Suppose we […]

Interim analyses : Interim analyses are periodic evaluations of data that are conducted during a clinical trial. These analyses are used to assess the safety and efficacy of a treatment being studied, as well as to make any necessary adjustments to the trial design. Interim analyses can be performed at any point during a clinical […]

Intercropping experiments : Intercropping is a farming technique that involves planting two or more crops in the same field, in close proximity to each other. This method has been used for centuries to increase the yield and productivity of a given area of land, and is particularly effective in regions with limited land resources. One […]

Intercept : Intercept in regression analysis refers to the point at which the regression line crosses the y-axis. This is the point at which the predicted value of the dependent variable is zero, even when all predictor variables are at their minimum values. For example, consider a regression analysis of the relationship between the amount […]

Interaction : Interaction in explanatory variables occurs when the effect of one explanatory variable on the response variable depends on the value of another explanatory variable. In other words, the relationship between the response variable and one of the explanatory variables is different for different values of the other explanatory variable. For example, let’s say […]

Intention-to-treat analysis : Intention-to-treat (ITT) analysis is a statistical approach used in clinical trials to assess the effectiveness of a treatment. It involves analyzing the data of all participants in a trial, regardless of whether they received the treatment or not, or whether they completed the trial or not. One example of ITT analysis is […]

Institutional Surveys : Institutional surveys are research methods that are used to collect data from organizations and institutions. These surveys are typically conducted by researchers who are interested in understanding the policies, practices, and experiences of institutions, such as schools, hospitals, and government agencies. One example of an institutional survey is a school climate survey. […]