March 2015
Beginner to intermediate
396 pages
10h 23m
English
Content preview from Improving the User Experience through Practical Data AnalyticsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 2
Comparing two designs (or anything else!) using independent sample T-tests
Abstract
This chapter considers the comparison of two means when you have independent samples. This usually means in practice that you have two different groups of people comparing either the same or different variables. For example, you may be considering mean satisfaction (the dependent variable) of a specific design for two different categories of people—e.g., experts vs. novices (the independent variable); or you may be comparing the mean satisfaction level for two different designs, with each design having its own evaluation sample of people. Or the quantity of interest might be the time to complete a task (e.g., make a purchase of a particular product on a ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.