The Math of Quantitative Research

These flashcards cover key vocabulary terms related to statistics and quantitative research methods, including definitions and explanations of essential concepts.

Statistics

A scientific discipline that deals with the acquisition, organization, study, analysis, display, and interpretation of data.

Descriptive Statistics

Statistics that deals with summarizing and describing data, including measures such as mean, median, and mode.

Inferential Statistics

Statistics that allows researchers to draw reliable conclusions about a larger population based on a small sample and test hypotheses.

Mean

The average value found in a sample or data set, calculated as the sum of all values divided by the number of values.

Median

The middle number in a sorted data set, calculated by arranging the data in order and finding the central value.

Mode

The most common number in a data set, which can have no mode, one mode, or multiple modes.

ANOVA (Analysis of Variance)

A statistical test to determine if survey or experiment results are significant, helping to decide whether to reject the null hypothesis or accept the alternate hypothesis.

Measures of Central Tendency

Values that describe the average or typical characteristics of a data set, specifically mean, median, and mode.

Sample Mean Formula

The formula for mean, represented as x̄ = (Σ xi ) / n, where Σ represents the sum of all x-values and n is the number of items in the sample.

Bimodal

A data set with two modes, or the most frequently occurring numbers.

Trimodal

A data set with three modes, indicating three numbers occur most frequently.