Introducing Jamovi
Summary
TLDRThe video introduces data analysis in a class, emphasizing the use of the Jamovi software for statistical tasks. Unlike complex tools like SPSS or R, Jamovi simplifies data analysis without requiring programming skills. The instructor explains how to download, set up, and input data in Jamovi, including coding variables such as gender, social media, and age with numeric values. The video serves as a beginner's guide, walking through basic operations like opening data sets and entering information, while preparing students for more complex tasks in the following lessons.
Takeaways
- 🖥️ The class will focus on data analysis using computer programs instead of manual calculations.
- 📊 While many researchers use complex programs like SPSS and R, this course will use Jamovi for simplicity.
- 🧑💻 Jamovi is built on R but doesn't require programming skills, making it easier to use for beginners.
- 💾 To download Jamovi, go to jamovi.org and choose the version that suits your operating system.
- 🔍 When Jamovi is opened, users see a blank dataset where they can input variables and data points.
- 📋 Data in Jamovi is always represented by numbers, even for categorical variables like gender or social media use.
- 👨👩👧👦 Variables like gender are coded numerically, where values like '1' may represent 'male' and '2' represents 'female'.
- 🔢 Jamovi allows users to explore variables by double-clicking, which shows how each is coded and labeled.
- ✍️ New data entries must follow the established numerical codes for the software to recognize the input.
- 📂 The lesson covers how to download, install, and use Jamovi, and how to enter data, with more complex tasks to come.
Q & A
What is the main focus of this class regarding data analysis?
-The main focus of this class is to conduct data analysis using computer programs, similar to what researchers do. The class will focus on using a program called Jamovi rather than performing statistics by hand or formula.
Why does the instructor choose Jamovi for this class instead of other statistical software?
-The instructor chooses Jamovi because it is simpler and easier to use compared to more complex programs like SPSS or R, which can have a steep learning curve. Jamovi is designed for teaching and learning, making it accessible without needing programming skills.
What is Jamovi built on, and how does it compare to R?
-Jamovi is built on a larger and more robust statistical program called R. However, unlike R, Jamovi does not require any programming skills, making it more user-friendly for students.
How do you download and install Jamovi on your computer?
-To download Jamovi, you need to go to jamovi.org, click on 'Download', and choose the appropriate version for your operating system. You can download either the solid or current version, though the instructor recommends the current one for its latest features.
How does Jamovi represent data when you open a dataset?
-When you open a dataset in Jamovi, it displays the variables as columns on one side of the screen. On the other side, you can view the analyses. Each variable can be double-clicked to see more detailed information about its coding and labels.
How does Jamovi handle categorical data like gender or yes/no questions?
-Jamovi requires all data to be represented as numbers. For example, gender might be coded as 1 for male and 2 for female. Yes/no questions are similarly coded (e.g., 1 for 'no' and 2 for 'yes'). The program automatically interprets and displays these labels based on the number entered.
What happens if you try to input non-numerical data in Jamovi?
-If you try to input non-numerical data, such as 'male' or 'female' directly, Jamovi will not accept it. You must input the corresponding numerical code (e.g., 1 for male, 2 for female).
How does Jamovi handle numerical data such as age?
-Numerical data, like age, can be entered directly as numbers. For example, if a participant is 20 years old, you can simply input '20' without any coding.
What should you do if you're unsure how a variable is coded in Jamovi?
-If you're unsure how a variable is coded, you can double-click the column header for that variable. Jamovi will display the coding scheme, showing how each label is represented by a number.
What are the next steps for the class after learning how to install and use Jamovi?
-The next steps are to install Jamovi, open the provided dataset, and practice entering data. The first homework will involve entering some data into the program. More complex analyses will be introduced in the following weeks once everyone is familiar with the software.
Outlines
📊 Introduction to Data Analysis and Software for the Course
In this class, the focus will be on data analysis, similar to what students may have done in previous psychology or statistics classes, but with a different approach. Instead of manually performing calculations or using formulas, students will use computer programs like researchers do. The software chosen for this class is Jamovi, which is simpler compared to more complex tools like SPSS and R, making it ideal for teaching and learning without requiring programming skills.
🖥️ Installing and Setting Up Jamovi
The instructor explains how to download and install Jamovi by visiting jamovi.org. On a Mac, the website detects the operating system and offers two download options, either of which can be used for the class. The current version is recommended as it includes the latest features. After installation, the user can open Jamovi and start with a blank dataset, consisting of variables in columns and areas for data analysis. The instructor demonstrates how to open a sample dataset to visualize the structure of the data.
🔢 Data Entry and Coding in Jamovi
Jamovi requires all data to be entered as numbers, even for categorical variables like gender. The instructor demonstrates how to code gender responses, where 'male' is coded as 1 and 'female' as 2. When entering new data, users must input the assigned numerical codes rather than typing out the labels (e.g., male or female). Jamovi automatically recognizes and assigns the corresponding label when a number is entered. This process is different from spreadsheet programs like Excel.
🧑🤝🧑 Exploring Variables in Jamovi
Jamovi allows users to explore more details about each variable by double-clicking on it. For instance, by examining the 'gender' variable, the instructor shows how the variable is coded and labeled. In this case, the variable reflects answers to the question 'What is your gender?' and is coded numerically (1 for male, 2 for female). The program enforces numerical data entry, even for non-numeric answers like 'yes' or 'no,' as in the social media usage variable.
📈 Handling Categorical and Numerical Variables
The instructor explains how to handle different types of variables in Jamovi, such as social media usage (a yes/no question) and age (a purely numeric variable). Each variable has corresponding codes for its responses. For instance, a 'yes' in the social media variable is coded as 2, and age is entered directly as a number. The instructor demonstrates how to input data for a new participant, ensuring that all categorical responses are entered as the appropriate numbers.
🔄 Entering New Data and Understanding Labels
When entering new data in Jamovi, the user must follow the numerical coding system assigned to each variable. For example, gender is coded as 1 for male and 2 for female, and race might be coded with numbers representing different categories. Jamovi enforces this by only accepting numbers during data entry. Users can always double-click on a variable's header to review the coding scheme if unsure.
📂 Opening Data Sets and Entering Data in Jamovi
The instructor wraps up the session by explaining how to open datasets in Jamovi, browse the computer for files, and enter data into the program. Since Jamovi enforces numerical data input, users must use the assigned number codes for each variable when entering new information. For homework, students are tasked with downloading and working with a dataset, entering new data while following the program's conventions.
Mindmap
Keywords
💡Data Analysis
💡Jamovi
💡Statistical Programs
💡R Programming
💡Variables
💡Coding Data
💡Labels
💡Data Set
💡Entering Data
💡Numerical Representation
Highlights
The class will focus on data analysis using computer programs rather than performing statistics by hand.
Researchers often use complex programs like SPSS and R, but this class will use a simpler tool, Jamovi.
Jamovi is built on R but is much easier to use, especially for those without computer programming skills.
Jamovi can perform the same data analyses as more complex programs used by researchers.
The instructor provides a step-by-step guide to download and install Jamovi from its official website, jamovi.org.
Jamovi displays a blank dataset where variables and columns are added, similar to other statistical programs.
Data in Jamovi needs to be entered as numbers, even for categorical variables like gender.
Variables in Jamovi can be examined by double-clicking on them to view labels and data coding.
Gender, for example, is coded numerically as 1 for male and 2 for female.
Social media usage is coded as 1 for 'No' and 2 for 'Yes' based on the question 'Do you have three or more active social media accounts?'
Entering data for a new participant involves using the assigned numeric codes for each variable.
Some variables, like age, are just numbers without coded labels, while others like race have specific codes.
Jamovi ensures that all data is entered in numeric form, making it distinct from spreadsheet programs like Excel.
The instructor emphasizes double-clicking on a variable header to view coding schemes when unsure how to enter data.
This week's task is to install Jamovi, open a dataset, and enter some basic data for homework.
Transcripts
so one of the things we're going to be
doing in this class quite a bit
is data analysis now you maybe have done
some statistical analyses before
such as in an introductory psychology
class or
statistics class but in this class we're
not going to be doing statistics by hand
or by formula we're going to do it like
researchers do it which is to use
computer programs
now a lot of researchers use programs
that are quite complex
such as spss and r and
these programs can have quite a bit of a
learning curve to them
so instead we're going to use a program
that's more meant for
teaching and learning in a more
simplistic way but we're going to be
able to do all the same stuff that
researchers often do with data
now the program i've chosen for this
class is called jamovi
it's built on a more large and robust
uh sort of statistical program called r
like the so called r integration but
it's a lot easier to use it doesn't
require any computer programming skills
like r
does so to get jmovie on your computer
you just go to jmovie.org
click on download and then since i'm on
a mac it's automatically detected that
and it's given me two options
the solid and the current form you can
download
either these are really the same for our
purposes
i just downloaded the the most current
one that has the latest features for my
own self
so once you have that downloaded and you
install it on your machine
you can open it up let me start with a
sort of a
new data set here
and basically when you open up jmovie
you're going to have just sort of a
blank data set where you have some
variables some columns
and then this side of the screen is
usually when you have some analyses
so jumobi is a relatively simple program
to set up
basically you have some data and let me
go and just open it up
just any data to kind of show you what
that looks like
but if i go up here to open and i'll go
to my pc i have some data from a
previous one so i'll just open this up
that basically on this side of the
screen it's going to represent the data
that you have
so in this case we have some variables
this one's called gender
this one's called social media this
one's called
video games and we're gonna we won't
really get into what this data even is
it doesn't matter but this is how data
often looks
now one things about jemovi is you can
look deeper in each variable by double
clicking on it so if we want to know
what gender actually is
which it seems obvious but let's go and
see how it's coded and things like that
we'll double click on it and basically
it gives us all the
variable information so here we have a
data variable called gender
and also i've added a label which i
usually do which represents
what were participants actually asked to
answer in this case just what is your
gender
now for this uh basically in jumovi
whenever you have data it always has to
be represented with numbers
even if the data is something like male
or female or a yes or no
but the way to do this is we code the
data so in this case
a male answer was coded as
a one and a female answer was coded
as a two now what that means is let's
say if i wanted to
input another data point here we
scrolled the bottom of this data set
it's quite a long data set there we go
if i want to enter in a new
participant's data i wouldn't type in
mail because it actually doesn't even
accept that if i hit enter it doesn't
really do anything if i click off of it
i can't
because you always have to enter data as
a number but since i've assigned
the number 1 to male if i erase that and
i put in a 1
and i hit enter then it recognizes that
and then it automatically fills it in
with whatever i've labeled that number
with so it's just one of those things
about your movie that is a little
different from other
spreadsheet programs you're maybe more
familiar with like microsoft excel
is that you always have to input numbers
the same thing here if i look at social
media as soon as i click on it it gives
me the view of that we have the number
or the variable social media
and this is the actual question that
participants were
asked do you have three or more active
social media accounts
which is just a yes or no question but
here once again we have
labels for this so a no is represented
by a one
and a yes is represented by a two so
let's say if this male participant had
three or more
active social media accounts we could
just put a two in here
and then it'll automatically fill it in
as a yes and so on and so forth
now sometimes you have variables that
don't have any labels attached to them
in fact let me try to find one that
looks more like that let me go up a
little bit
let's take a look at this one here we go
so in this data set basically we have
one variable of
age if we click on this basically this
is just
numbers and it represents that as levels
that don't have any kind of number
attached to them so let's say if we had
a new participant
who had the age of 20 here we could just
put in a 20. and since it's a number
it accepts that but once again if we
want to know whether that participant is
male or female let's say they're female
in this case we again can't put in
female won't accept that
but we can put in a 1 and it knows what
that is
and then for this variable let's say
what the race is let's say it's
multiracial
for that we're going to put in a 5 and
that's how you'd enter in that data
so that's though maybe one tricky thing
about entering in data in jumovie is you
always have to enter it as a number but
as long as you can see the variable's
information you can see
what all these labels are assigned to
how they were coded into different
numbers in this case so that's really
all we're going to cover this week
is just how to your movie how to get it
from jmovie.org how to open it up
and how to open up a data set which
basically you just go
up here click open and then you can just
browse your computer wherever you want
to
find your data and once you have that up
how to maybe enter in some data which
again you always have to do with numbers
if you ever get stuck you're like i want
to enter in latinx here
but i don't know how to do that always
remember you can double click on the
header
it'll give you all the number schemes so
latinx in this case was
coded as a one okay so
it's just enough to kind of get your
feet wet check out the program you can
open up the data set that's offered this
week which looks like this
and basically you're just going to enter
in a little bit of data for your
homework this week and then we'll jump
into some more complex stuff
next week once everybody has it
installed is ready to go
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