IB SEHS Topics 6.1 and 6.2 Review Exam
Questions with A+ Graded Answers
Standard Deviation - -a computed measure of how much scores vary around
the mean score
-State why standard deviation is useful - -Displays the consistency of each
sample
-t-test - -used to determine if two sets of data are significantly different
from each other.
-Specificity - -Choosing the right types of activities to improve a given
element of fitness
-Accuracy - -A description of how close a measurement is to the true value
of the quantity measured.
-Reliability - -Ability of a test to yield very similar scores for the same
individual over repeated testings
-Validity - -The ability of a test to measure what it is intended to measure
-Control group - -In an experiment, the group that is not exposed to the
treatment; contrasts with the experimental group and serves as a
comparison for evaluating the effect of the treatment.
-Why is it important to have an control group? - -To see if your hypothesis
correlates with the data collected and overcoming learning problems
-Randomized groups - -People of various skill levels are put in different
groups by random. This is to ensure that we don't favor one group over
another.
-Blind experiment - -Participants in the experiment don't know which group
they are in. If the participants know what they are getting, it will defeat the
purpose of the experiment
-Double blind experiment - -both the participants and the experimenters
are unaware of who is in the experimental or control groups. This is to make
sure that neither party influences the results.
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