Arduino plus a vibrating coin motor

Recently we bought 10 coin like vibrating motors from Precision Microdrives. In the following video you will one of them in use. It is connected to an Arduino Uno micro controller. Update: Now we have built some wrist bands/straps using the vibrating motors, velcro, silver tape, arduino, batteries and more. Hopefully, we will have a […]

What programming language should I learn – 2

I recently asked which programming language I should learn next year (i.e., 2016). In this post I will evaluate the alternatives that I have by asking the question in different places around the internet. The post will end with the choice I made and how to install the language To summarize my earlier post, I […]

TrialHandler – a PsychoPy tutorial

In this tutorial you will get to know how to use the PsychoPy function TrialHandler to create trials and correct responses to your targets in these trials. PsychoPy is an application for creating experiments for Psychology experiments. The application is written in Python, an easy programming language to learn. You can learn more about PsychoPy […]

R from Python – an rpy2 tutorial

rpy2 tutorial Recently I found the Python module rpy2. This module offers a Python interface to R. Obviously; rpy2 requires that you have both R (version 3.2+) and Python (versions 2.7 and 3.3) installed.  There are pre-compiled binaries available for Linux and Windows (unsupported and unofficial, however). In this short tutorial, I will show you […]

R books for Psychologists

R is a free and open-source statistical programming environment. Being open-source and free it has a large and helpful online community (for instance, see StackOverflow).  When I went from carrying out analysis in SPSS to do them in R, I searched for good books targeted to Psychologists.   The following 4 R books are useful and […]

Papaja – APA manuscripts made easy

Do you also find it time-consuming to make your manuscripts follow American Psychological Associations (APA) guidelines? Have you searched the internet for a good .docx/.doc APA template? After reading this post, you might not have to search any more. Papaja is an r-package that makes your manuscript conform to APA guidelines! In this post I […]

Some good Python Blogs and Resources

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 […]

Python apps and libraries for creating experiments

In this post, I will describe the existing free Python applications and libraries for creating experiments.  So far, I have only used PsychoPy but I plan to test most of them. At least the ones that seem to still be maintained. All applications and libraries are open-source which makes it possible to download the source […]

Reverse scoring using R statistical environment

This post is my first on R and it will describe a method to reverse scores using R. Reverse scoring In many instruments (i.e., questionnaires) some items are phrased so that a strong agreement indicates something negative (e.g., “When there is music in the room I find it hard to concentrate on reading”). For more […]

What programming language should I learn?

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 would like to learn a relatively new language and it should not […]