How the addition of error bars influence people’s perceived differences between groups with or without lower graph distortion

Title: How the addition of error bars influence people's perceived differences between groups with or without lower graph distortion

Description: A graph with a y-axis truncation affects people’s judgements of the differences between data quantities. This research aims to find out whether the presence of error bars will affect people’s understanding of differences between groups and influence the truncation effect. If I wish to participate in this study and I have consented, I will fill in my email address for raffle first. Then there will be information page regarding the concept of error bars and y-axis truncations. I will be presented with a series of graphs; for each graph, I have to make a subjective comparison between group A and group B on a scale from 1 (not at all different) to 7 (extremely different). Two sample questions will be presented before the task. This task includes 80 graphs in total. Participation will take roughly 20 minutes. Then, I will be asked to give information about my age, sex, first language and education level. Finally, I will be asked to choose my approach to answering questions.
By participating in this research, you will have the chance to win one of ten 25 $CAN gift cards. Both English and French are available

Specifics: Study Population:
1) Researchers and instructors in Quantitative methods in psychology, OR
2) Graduate students in psychology For researchers and instructors in Quantitative methods in psychology:https://uottawapsy.az1.qualtrics.com/jfe/form/SV_3I5yooMqxJvESy2 For graduate students in Psychology: https://uottawapsy.az1.qualtrics.com/jfe/form/SV_cuVSYIdET6XRUuW

Location: online-ottawa

Project lead: Shuo Zang, Supervisor: Denis Cousineau

Study Dates: September 18, 2024 to November 10, 2024