In this post you will find some really good Python Blogs and Resources. Most of these really helped me when moving from proprietary software to free and Open Source software (e.g., PsychoPy written in Python). The links are divided into two categories: general and research. In the ‘general’ category you will find good Python resources […]
Some good Python Blogs and Resources Read More »
In this tutorial, you will learn how to do reverse scoring in R. Specifically, we will use 1) base R to reverse selected variables (e.g., questionnaire items), and 2) we will use the Psych package. Reverse scoring Many instruments (e.g., questionnaires) contain items phrased so that a strong agreement indicates something negative (e.g., “When there
Reverse Scoring using R Statistical Environment Read More »
I am getting better at writing Python code, and I am starting to feel an itch to extend my toolbox and learn more about programming. Therefore, one step in that direction is to learn a new programming language next year (i.e., 2016). I want to learn a relatively new language, and it should not be
What programming language should I learn? Read More »
PsychoPy This post will describe why I prefer using PsychoPy before other software. When I started getting involved in research (i.e., when doing my Bachelor’s and Masters’s theses), I used the software that was accessible to me. That is, some of the most commonly used software in the department I was studying at. After starting
Free & Useful Software – PsychoPy Read More »
This rather long (counting the Python code) tutorial assumes that you are interested in scraping data off the web using Scrapy. It might also be limited to Linux. Installing scrapy Here is how to install a Python package using pip: Note, if you need to you can also use pip to install a specific version
Collecting data with Scrapy Read More »
In this post, we will learn how to reverse scores in Python. Reversing questionnaire scores is easy; this post is concise. Why you Need to Reverse Code We sometimes want to reverse the scoring when working with questionnaires that use a Likert scale (e.g., strongly disagree, disagree, neutral, agree, strongly agree). For instance, in a
Reverse Scoring in Python with Pandas Read More »
In this post you will find a Python script for randomizing conditions with constraints (i.e., never 2 consecutive trials of X). This script will in a later post be implemented in a cross-modal oddball task created in Psychopy. I recently started to use Psychopy to build experiments. To build my experiments (mainly oddball tasks) I
Python script for trial randomization Read More »