Page 81 - Computer Based Training OUM
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use of decorative visuals has been shown to depress

                       learning

                     Apply the Four Cs


                               As you start to plan your screen layouts, attend to the
                                four  Cs:  Clean,  Consistent,  Clear,  and  Controlled  by

                                the learner

             3. Audio and Text


                                Recent research has shown that a complex visual is
                                 better  explained  by  audio  narration  than  by  on-

                                 screen text

                                The  reason  is  that  working  memory  has  two

                                 processing                         centers:                       one
                                 for  visual  information  and  one  for  phonetic  or

                                 auditory information

                                When  you  explain  a  complex  visual  with  text,  you

                                 overload the visual center with two visual inputs: a
                                 graphic and the text

                                Mental overload leads to depressed learning


                                However,  reliance  on  audio  alone  can  pose  a
                                 problem for learners  who may lack sound cards or

                                 have hearing disabilities

                                Therefore,  in  asynchronous  e-learning,  offer  an

                                 "audio-off"  option  that  will  replace  audio  with  on-
                                 screen text


                                In  synchronous  forms  of  e-learning,  many  tools
                                 offer  a  closed  captioning  facility  that  can  be

                                 accessed by those needing it

                                It's  a  common  myth  that  learning  is  better  when  a

                                 visual  is  explained  by  BOTH  audio  and  on-screen
                                 text.  The  truth,  however,  is  that  presenting  the
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