FREE for use with an Inquisit Lab or Inquisit Web license.
The mental paper folding task for children as developed by Harris, Hirsh-Pasek, & Newcombe (2013).
Harris, J., Hirsh-Pasek, K. & Newcombe, N. S. (2013). A new twist on studying the development of dynamic
spatial transformations: Mental paper folding in young children. Mind, Brain and Education, 7, 49-55.