Question 3 Human factors research is valuable for all of the following except: Developing new video compression software to speed up file transmission over the internet Developing a new mouse that...

Posted 3rd time must Answer all and fast else give downvote as i give before

Extracted text: Question 3 Human factors research is valuable for all of the following except: Developing new video compression software to speed up file transmission over the internet Developing a new mouse that controls a pointer in 3D space Making sure people can interpret the meaning of symbols on a piece of industrial equipment Development of a new trackball input method for cell phones


Extracted text: In a usability experiment, the same users try out several different interface designs for a new phone. What kind of design is this? Within subjects Between subjects Observational Nonexperimental Question 5 You conduct a study to see how easy a new cellphone is to use, and your study participants are all male American undergraduate students between 18-22 years of age. It is unclear whether your results will generalize to older and younger adults of both sexes and in countries around the world. Under suspicion is your study's: External validity O Ecological validity O Internal validity Face validity