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ryan straight, ph.d

9X9X25 Challenge, Extender Blogs

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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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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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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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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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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October Squad Ghouls Network Take-Over: Postmortem

Well, it wasn’t as scary as I thought it would be. It was also quieter than I’d expected. For the month of October I was tasked with running the social media for the Squad Goals Network, a collective of pure academic and collaborative brilliance, of which I am honored to be a part. And you know what? I had a pretty good time. That said, let’s talk about it a bit. My basic theme for the month was fear. Partly […]

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9x9x25 Challenge: The Harshest Mirror

Reflection is hard. It can be scary. Not for lack of content but for the what it means to potentially confront your shortcomings. Yes, the goal is to improve but to do that you must admit where you are lacking. Of course, we can couch this in platitudes like, “It’s not that I’m bad at it, just that… it’s an area for growth.” And this is most likely true. Doesn’t change the fact that you still have to admit that […]

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9X9X25 Challenge, Extender Blogs

9x9x25 Challenge: An Introduction and a Plan

To start off with, let me say that I volunteered the #SquadGoalsNetwork for this challenge and take full responsibility for it. That said, I’m looking for the entire squad to do the challenge in total, not for each member to do their own 9x9x25 challenge. They can if they want but it’s far from necessary. I’m hard but I’m not cruel, sheesh. The SGN is (and continues to grow into) a collection of incredibly talented and reflective people, so the […]

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October 2018 SGN Social Media Takeover

As such, I wanted to share a little bit about the concept, the process, the expectations, and the theme of the month. The sheer organization, thoughtfulness, and inclusion of last month’s takeover by Angela Gunder means there are some pretty high standards for this month. That was in part the reason for this month’s theme: fear. Fun theme, right? Right? I mean, I’ve even got one of the Silent Hill game soundtracks on while I write this. I’m 100% committed […]

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