Dr. Morton Anne Gernsbacher has freely shared her WHOLE Psychological Statistics class with the world. No paywalls, no log-ins. Divided up sensibly, including sections on effect sizes and Bayesian. With some assistance from Chelsea Andrews, she created this phenomenal resource for all of us to use. While I'm focusing on her stats class, be sure to check out her amazing Research Methods and Psychological Effects of the Internet courses.
DO NOTE: I'm not primarily recommending this directly as a resource as a class for students. I'm recommending it to you, instructors, as a source of great, free statistical readings and teaching ideas that you could incorporate into your own classes. This is especially helpful if you are trying to teach without a textbook or if you are just looking for additional ways of explaining tough statistical concepts to your students.
Here are a few things she shares that you could use:
1. Plenty of guidance for teaching via Excel/Google Sheets/Apple Numbers
I teach in JASP. I like it because it is free and there is a user interface.
However, I sometimes wonder if I should just teach using spreadsheets because ALL of our students will reencounter spreadsheets in the modern workplace. They may not ever see an ANOVA again.
Dr. Gernsbacher gives her students options for which product they will use. And she gives them guidance on how to do it.
2. Plenty of free readings about ALL of the intro topics.
All of the resources she has curated here are free. If you are trying to teach without a textbook, this is a possible resource. And if you are teaching with a textbook, these are still great readings. For just one example: The GLM chapter includes links to outside readings, like mathisfun.com and Harvard Business Review.
3. Her syllabus is a good example of how to reformat a syllabus for greater student engagement.
4. Class activities and assignments
These are interspersed throughout the entire class. She provides enough information for you to use in your classes.