The double jump, air dash, and cancel controls make for a fantastic degree of control, with only a few moments where a combination of small platforms and
uncooperative camera angles resulted in frustration.
In 2004, Marian Bakermans - Kranenburg, a professor of child and family studies at Leiden University, started carrying a video
camera into homes of families whose 1 - to -3-year-olds indulged heavily in the oppositional, aggressive,
uncooperative, and aggravating behavior that psychologists call «externalizing»: whining, screaming, whacking, throwing tantrums and objects, and willfully refusing reasonable requests.