## T-test: Definition, Formula, Types, Applications

The t-test is a test in statistics that is used for testing hypotheses regarding the mean of a small sample taken population when the standard deviation of the population is … Read more

## Questionnaires and Schedules

The research process is incomplete without the collection of data, which starts after the identification of the research problems and chalking out research design. There are several methods involved in … Read more

## Nominal, Ordinal, Interval and Ratio Data

Depending on the measurements, there are four different types of data that can be achieved. These different types of data are nominal, ordinal, interval and ratio data. These different variances … Read more

## Data and its types

Data is a set of values of subjects with respect to qualitative or quantitative variables. Data is raw, unorganized facts that need to be processed. Data can be something simple … Read more

## Z-test: Definition, formula, examples, uses, z-test vs t-test

z-test definition z-test is a statistical tool used for the comparison or determination of the significance of several statistical measures, particularly the mean in a sample from a normally distributed … Read more

## P Value- Definition, Formula, Table, Finding P-value, Significance

The p-value or the calculated probability is the best probability to provide the smallest level of significance at which the null hypothesis is not true. P value formula How to … Read more

## ANOVA: Definition, one-way, two-way, table, examples, uses

ANOVA Definition ANOVA (Analysis of Variance) is a statistical tool to test the homogeneity of different groups based on their differences. ANOVA is the method of analyzing the variance in … Read more

## Chi-square Test: Formula, Uses, Table, Examples, Uses

A Chi-square test is performed to determine if there is a difference between the theoretical population parameter and the observed data. Chi-square test uses Chi-square test is performed for various … Read more

## Independent vs. Dependent variables: 10 Differences, Examples

Independent Variables The Independent variable is a type of variable used in experimental sciences, statistical modeling, and mathematical modeling which doesn’t depend on any other variables in the scope of … Read more

## Descriptive Studies- Types, Applications, Advantages, Limitations

A simple description of the health status of a community, based on routinely available data or on data obtained in special surveys, is often the first step in an epidemiological … Read more