Chapter 12 Descriptive Statistics and Jamovi

A collection of flashcards summarizing essential vocabulary and concepts from the lecture on Descriptive Statistics and the use of Jamovi in data analysis.

Descriptive Statistics

Provides detailed information about the data being analyzed, offering descriptions without inferences.

Nominal scale

A scale of measurement with no numerical or quantitative properties, where data is categorized into different groups.

Ordinal scale

A scale of measurement that allows for order ranking of items but does not specify the distance between them.

Interval scale

A scale where the intervals between levels are equal in size, but there is no absolute zero.

Ratio scale

A scale that has equal intervals and an absolute zero, allowing for the comparison of absolute magnitudes.

Jamovi

An open statistical software for desktop and cloud, similar to SPSS, used for data entry and analysis.

Mean

The average value of a dataset, sensitive to extreme values.

Median

The middle value of a dataset when ordered, best for data with extreme values.

Standard deviation (SD)

A measure of how spread out numbers are from the mean in the same units as the mean.

Correlation coefficient (Pearson r)

Measures how strongly variables are related, ranging from -1 to 1, with larger values indicating stronger relationships.

Regression equation

Mathematical formula used to predict the value of one variable based on another variable.

Effect size

Indicates the strength of association between variables, providing practical significance of findings.

Partial correlation

A method to control for the effect of other variables when assessing the correlation between two variables.