Category Archives: Uncategorized

Good old lexical decision task… It’s where you show participants a word like “THREAD” or a nonword like “DERHTA” and you ask them whether the word you showed them is a real word or not. If you’re not a cognitive psychologist, you may not see how this is a useful exercise. Studies often find that,Continue reading “Part 4.5: Reaction times, lexical decision task”

In this post, we’ll work on a category learning task. Participants will be shown pictures of beetles with different beak styles, antennae, abdomens, legs, and eyes. In other words, each beetle will have 5 features with 2 different possible values (e.g., eyes can be red or green). To get this study going on your ownContinue reading “Part 5: Category learning task, “while” loops”

In this post, we’ll go over how to create an experiment where people are randomly assigned to one of two groups and, more importantly, how to export their data as a CSV (comma separated values) file. CSV files are essentially spreadsheets that can be read by Excel, Google Sheets, R, SPSS, or whatever you useContinue reading “Part 4: Displaying images, manually assigning groups, export .CSV files, if-then statements”

In this post, we’re going to go over how to program a simple memory experiment. We’ll still be working with functions, “for” loops, and lists. The only new”building block” introduced here is randomization. Basically, this is a post for reinforcing concepts earlier on. What you’ll end up with, the Deese-Roediger-McDermott (DRM) paradigm In this study,Continue reading “Part 3: DRM Paradigm”

In part 2, we’re going to build on the basics from part 1. The end result will be a simple survey that shows your participant a statement, and they’ll rate how much they agree with these statements on a scale of 1-9. I put a rudimentary method for recording their responses at the end, butContinue reading “Part 2: A simple survey”

Introductions (Skip if you’re in a hurry. I won’t know.) In these tutorials, I’m going to show you how to create and run your own psychology experiments using psychopy. Psychopy is a library of python scripts. We’ll actually end up using a lot of “raw” (or “from scratch”) python code, but the psychopy library makesContinue reading “Part 1: Introductions and a very simple “study””