This archive contains the supplementary materials for "The impact of the IKEA effect on learning abstract skills".

The following files are included:
- circuit.lppz
- control.py
- data.csv
- data.jasp
- housing.slvs
- sketch.ino
- top.slvs

Briefly, each file in order, contains:
- the circuit diagram for the hardware component
- the software running on the computer controlling the experiment
- the raw data from experiments
- the processed data from experiments
- the cylindrical part of the plastic chassis
- the software running on the Arduino Nano microcontroller
- the top part of the plastic chassis

And can be opened/run as follows:
- using LibrePCB https://librepcb.org/
- using a text editor, or by running `stty -F /dev/ttyACM0 raw 115200 && python control.py /dev/ttyACM0` (it has a simple simulator that is activated when running `python control.py ""`)
- using a text editor or spreadsheet program
- using JASP https://jasp-stats.org/
- using SolveSpace https://solvespace.com/index.pl
- using a text editor or the Arduino IDE https://www.arduino.cc/en/software/
- using SolveSpace https://solvespace.com/index.pl

