Biology, 20.09.2019 16:30 cloudFF

Drake is comparing time people spend playing games on xbox versus playstation. in his study, individuals ages 10 - 15 are given xbox's and individuals ages 16 - 25 are given playstations. after collecting his data he observes that those using the playstation had logged more hours. drake concludes that the playstation is more popular. this is an example of :
a. experimental bias
b. skepticism
c. controlled environment
d. a qualitative observation
two 8th grade students decided to race around the track at their school. one had running shoes on and the other student was wearing sandals. their running speed was compared. what is the dependent variable?
a. types of shoes
b. age of the students
c. speed of the students
d. distance the students ran

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