Posted: June 29th, 2022

Hypothesis Testing and Critical

Hypothesis Testing and Critical
Assessments #2
Hypothesis Testing And Critical Assessments #2
1. A total of 100 undergraduates were recruited to participate in a
study on the effects of study location on learning. The study
employed a 2 x 2 between-subjects design, with all participants
studying a chapter on the science of gravity and then being tested
on the to-be-learned material one week later. Fifty of the
participants were asked to study the chapter at the library,
whereas the other fifty were asked to study the chapter at home.
As a separate manipulation, participants were either told to study
the chapter for 30 min or 120 min. The hypothetical set of data
shown below represents the level of performance of participants
on the test as a function of condition.
30 min 120 min Library 60 80 Home 40 60
a) Is there a main effect of Study Location? In answering, provide
the marginal means and state the direction of the effect (if there is
one).
b) Is there a main effect of Study Duration? In answering, provide
the marginal means and state the direction of the effect (if there is
one).
c) Do the results indicate an interaction? If so, describe the nature
of the interaction by

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