Author Question: For a one-way ANOVA source table, the total degrees of freedom should be ________ the ... (Read 78 times)

dmcintosh · **on:** Jun 20, 2018

For a one-way ANOVA source table, the total degrees of freedom should be ________ the
between-groups degrees of freedom plus the within-groups degrees of freedom.

A) equal to B) less than C) 5 of D) greater than

Question 2

You recently completed a psychology experiment on campus in this little room the size of a
closet which was stuffy and warm.

Your task was to sit in front of single computer screen
displaying a simulated airplane cockpit and detect when a warning light flashed. When finished,
the experimenter told you she was studying how people miss warning lights and that she will
apply the results to airline pilots? What is the problem with this type of research with regard to
external validity?
A) Results may not apply to airline pilots because the experiment and airplane environments
are so different.
B) The warm room was an extraneous variable so the researcher cannot make
cause-and-effect conclusions.
C) The warm room was an nuisance variable so the researcher cannot make cause-and-effect
conclusions.
D) Results may not apply to airline pilots because of temporal generalization.