2 Jamovi Basics

2.1 Download Jamovi

Jamovi can be downloaded for free from Jamovi’s website. This guide was created using jamovi 2.5.6.

2.2 Getting Started

When you first open jamovi, you will be presented with a user interface that looks like this:

The jamovi user interface. One the left is a spreadsheet on the right is a blank white panel. Along the top is the data menu panel.

On the left is the spreadsheet view where the data will appear. On the right is where the results of statistical analyses appear.

You can enter data directly into the jamovi spreadsheet, or if you already have the data in another data file format, you can open that file in jamovi. Jamovi supports a wide range of file types, including CSV, XLSX, SPSS, Stata, SAS, and more.

2.3 Opening Data in Jamovi

To open an existing dataset, click on the three lines in the upper left-hand corner Three horizonal lines that indicate the menu button

Next, select Open, then navigate to where you have the file saved. If your file directory does not automatically open in the open panel, select Browse and navigate to the correct location using your computer’s file navigation.

Jamovi's open menu

Note. When opening an existing dataset, use the Open option, not the Special Import option. The special import option is used for combining datasets and, if used, will append your data to the existing empty data columns. As a result, your dataset will have empty variables if you use the special import option.

2.4 Opening Jamovi Files in Windows versus Mac

Once you have a saved jamovi file, you can open it on a Windows computer by simply double-clicking it like any other file. However, if you are using a Mac, the operating system will often not recognize the file type, and you will get an error message. To open an existing jamovi file on a Mac, first open the jamovi program, then use the steps outlined above using the open menu.

2.5 Jamovi Settings

In the upper right-hand of the menu ribbon, there are three dots Three dots stacked vertically that indicate the settings menu.

2.5.1 Recommended Changes

I recommend two settings under the Results section of the settings menu:

  1. Number format: 2 dp.
  2. P-value format: 3 dp

With these settings, numbers in your analyses (other than p-values) will be presented with two decimal places, which is consistent with APA style. P-values will be presented with three decimal places. Later in this text, we will discuss when you should report p-values with two decimal places versus three decimal places. See Quick Reference: Reporting Statistics in APA Style.

2.5.2 Other Changes

Also under Results, you can select “Syntax Mode” to make the underlying R code visible. This code works with the jamovi package in R. Learn more about jamovi and R on the jamovi R package website. Under Plots, you can also change the plot theme and the color palette.

2.6 Different View Options

When you open jamovi, there are different view options accessible via tabs at the top of the window.

2.6.1 Variables

In Variables view, you will see a list of the variables in your data set, including the Name, Description, and a symbol that indicates the variable measure type (nominal, ordinal, continuous, or ID). This view is useful for reviewing all the variables in your dataset and locating a specific variable when you have many of them.

The top ribbon provides options for editing variable information, computing new variables, and transforming existing variables.

Jamovi in variable view. In the left panel there is a list of variables included in the Well-being dataset. There is also a place next to each variable name for a description.

2.6.2 Data

In Data view, you will see a spreadsheet view of your data. In Data view:

  • Each line represents a participant’s responses (the Well-being dataset had 400 participants, therefore there are 400 lines in the data view spreadsheet)
  • Each column represents a variable (i.e., the participant’s response to each question in the Well-Being survey)

The top ribbon provides similar options to Variables view: setup variable information, computing new variables, and transforming existing variables.

Jamovi in data view. The left panel is a spread sheet. Along the top of the spreadsheet at the top of each column are the names of the variable in the Well-being dataset. Each of the cells of the spreadsheet contains a number.

2.6.3 Analyses

In Analyses view you will also see the spreadsheet view of your data. However, now the top ribbon options include menus of different groups of statistical analyses.

Jamovi in analysis view. The top ribbon has menus for exploration, t-test, ANOVA, regression, frequencies, and factor.

License

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Statistics in jamovi Copyright © 2024 by Brittany E. Hanson is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.

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