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ryan straight, ph.d

9X9X25 Challenge, Extender Blogs

Research Design

Learning Objectives for Research Design Show learning objectives These are the learning objectives for this portion of the class: Describe reliability in terms of true scores and error Compute reliability from the true score and error variance Define the standard error of measurement and state why it is valuable State the effect of test length on reliability Distinguish between reliability and validity Define three types of validity Recognize sampling bias Distinguish among self-selection bias, undercoverage bias, and survivorship bias Distinguish […]

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Big Data

What Is Big Data? A Super Simple Explanation For Everyone >The term “Big Data” may have been around for some time now, but there is still quite a lot of confusion about what it actually means. In truth, the concept is continually evolving and being reconsidered, as it remains the driving force behind many ongoing waves of digital transformation, including artificial intelligence, data science and the Internet of Things. But what exactly is Big Data and how is it changing […]

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Module 1: The Conceptual Model: Consumables

It’s never just readings. These are all the materials you’ll need to consume in Module 1. Consumables Read: chapters 1-4 in your textbook. Read: Conceptual Models in a Nutshell Read: Conceptual Models: Begin by Designing What to Design Read: OWASP Proactive Controls: Implement Appropriate Access Controls Read: OWASP Security by Design Read: Myers - Programming with Explicit Security Policies Read: Emotional Design: People and Things

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Module 1: The Conceptual Model

Module 1 is all about introducing you to the concepts of human-computer interaction, interface design, and some general best practices. Learning Objectives Module 1 has the following goals and objectives: Explain the difference between good and poor interaction design. Explain what is good and bad about an interactive product in terms of the goals and core principles of interaction design. Explain what is meant by problem space. Describe what a conceptual model is and how to begin to formulate one. […]

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R and RStudio

We’re using an incredibly powerful statistical software package in this class (in fact, this entire course site is built using it). Unfortunately, it does come with a bit of a learning curve. You won’t be required to learn the nitty-gritty ins and outs of the R scripting language but you will need to know the basics of what R can do. Luckily, we have RStudio to really help out with that. Below are some introductory articles and videos. Download R […]

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Resources

This is a pretty resource-heavy class. Here’s a (not so) small collection of them. Texts You have two main texts for this class, both of which are free and the latter available to to you as part of the University of Arizona. Online Statistics Textbook Lane, D. (2016). Online Statistics Education: A Multimedia Course of Study. 2nd ed. Houston: Rice University. http://onlinestatbook.com/2/. (PDF backup) Online Statistics: An Interactive Multimedia Course of Study is a resource for learning and teaching introductory […]

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Activity A

Week 2 (Activity A) Description A marketing consultant observed 50 consecutive shoppers at a grocery store, and recorded how much money each shopper spent in the store. The dataset is listed below. The Data First things first: create a new RStudio Project. Using a separate project for each assignment is probably best. Don’t worry about version control unless you either a) plan on working on these assignments across multiple devices, or b) are already knowledgeable of and comfortable with Git […]

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Finding Order in Chaos

I don’t want to say I’m the typical professor (heck, I have an entire podcast devoted to exploring just what the heck that means) but I certainly do occasionally resemble the clichéd absent-minded professor. Remember: good thoughts are clear thoughts and that’s much harder than it sounds when your job is to think about so much, so often, for so long. To put it simply, we have a lot of stuff in our heads. In my experience, one of the […]

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