Statistics and Methodology

A case study on the challenges of theory testing in psychology

“But when does lack of ‘simplicity’ in the protective belt of theoretical adjustments reach the point at which the theory must be abandoned?” – Lakatos, 1976 What does it take to falsify a psychological theory? This question sounds straightforward: if you find data that are inconsistent with the theory, you reject the theory. But in […]

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Behavior, brain imaging, and fluffy cuddles

Have you ever been inside an MRI scanner? I recently got in one and it was quite the experience. After a short introduction to the process, including a question about whether I was claustrophobic, they gave me earplugs – because it’s NOISY inside the machine, yes, in capitals – and then they proceeded to slide […]

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Out-thinking sub-optimal survey responders

It never ceases to amaze me the lengths people will go to “outsmart” a system – whether it is homework, a test, an insurance claim, a speeding ticket, a secure file, or a survey. Because humans engage in “sub-optimal” behavior (aka careless, insufficient effort, or deception), survey research is especially vulnerable and must guard against […]

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Survey says . . . let the participant decide

Describe your current level of pain using the scale below. Use the scale below to indicate your current level of happiness. Rate your degree of agreement for the following statement using either a 4-, 6-, or 11-point scale of your choosing from strongly disagree to strongly agree. “I lead a purposeful and meaningful life.” From […]

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Five-star parenting, would totally recommend

The Black Mirror episode “Nosedive” (2016) introduces a society where people constantly rate their interactions with each other through their smartphones. Those ratings deeply influence outcomes in their everyday life, including high-stakes situations such as access to housing and freedom of transit. Leaving aside the dystopian aspects, people in that society managed to solve an […]

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The quest for “statistical truth” – The guidelines to the meta-analysis galaxy

Quests A quest is a journey or mission to some goal, usually fraught with obstacles, twists and turns, and hopefully, some epiphanies along the way. Neil Armstrong. Harry Potter. Indiana Jones. Katniss Everdeen. Merida. Dorothy. Each individual had their individual quests for exploration, peace, facts, freedom, home, or truth, while others, like myself, sought education […]

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What do we mean by visual distraction? Inconceivable insights from 21 scientists

Have you ever had the experience of talking with someone and partway through, you realize that while you both might be using the same vocabulary, what you mean is quite different? Sometimes, this comes from a generational gap. Slang words change frequently, and some words don’t have the same meaning that they once did. For […]

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Keeping an eye on it. The importance of standardized guidelines

Does anyone remember how to write a check these days? I imagine some people reading this post might be scratching their heads and wondering what a check is. In today’s world, where paper and hard currency are quickly being replaced with credit cards, and checks are mostly obsolete due to Venmo, Zelle, or PayPal, one […]

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Prioritizing inclusivity does not sacrifice reliability

When I first dove into research at my current laboratory, I inherited a grab bag of R code snippets, shell scripts, tasks, paradigms, and measures. I’m sure I am not alone in this experience. Using existing tools and frameworks in research is common practice—it’s often more efficient and can yield better outcomes than building everything […]

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