Cognitive Load of Learner Control: Extraneous or Germane Load?

Table 3

Means (standard deviations) of difficulty ratings.

Treatment	Condition	Mean (SD)
Singletask	Learner control	4.07 (1.14)
	No control	4.27 (1.06)
Dual task	Learner control	3.82 (1.12)
	No control	4.52 (1.03)