Another unresolved issue is how long a
learner can observe a time-compressed multimedia
message before maximizing their cognitive
load. While instructional designers following
good design practice build small digital learning
objects, we do not have an optimal length for
these learning objects under conditions of timecompression.
Research might choose to tackle
this unresolved issue by looking at the length of
time learners can handle both simple and complex
material in a multimedia environment.