MGRADES
IB SEHS Topic 6 UPDATED ACTUAL
Exam Questions and CORRECT Answers
Standard Deviation - CORRECT ANSWER - a spread of scores around the mean
State why standard deviation is useful - CORRECT ANSWER - Displays the consistency
of each sample
t-test - CORRECT ANSWER - used to determine if two sets of data are significantly
different from each other.
Error bars - CORRECT ANSWER - graphical representation of variability of the data
What constant do we use for error bars? - CORRECT ANSWER -2
Specificity - CORRECT ANSWER - Measuring the skills needed for a sport can see how
well the athlete can maintain that skill when repeatedly doing it.
Accuracy - CORRECT ANSWER - Checking if the instruments you're using in an
experiment are working properly
Reliability - CORRECT ANSWER - if you repeated the test again are you likely to get
similar results
Validity - CORRECT ANSWER - Does the test actually test what is tests
Control group - CORRECT ANSWER - a bunch of people are put into a group that doesn't
get any special treatment for the experiment.
, MGRADES
Why is it important to have an control group? - CORRECT ANSWER - To see if your
hypothesis correlates with the data collected and overcoming learning problems
Randomized groups - CORRECT ANSWER✅✅- 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 - CORRECT ANSWER - 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 - CORRECT ANSWER - 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.
Placebo - CORRECT ANSWER - A harmless substance given to the participants in the
controlled group. The substance won't affect the person's performance during the experiment.
PAR-Q - CORRECT ANSWER - a questionnaire that makes sure the participant doesn't
have any health issues that will put them in danger in the experiment
Field testing - CORRECT ANSWER - tests that can be done without expensive
equipment.
Laboratory testing - CORRECT ANSWER - experiments that are done in a lab. More
accurate than field testing
Maximal - CORRECT ANSWER - testing for a person's maximum ability. Used for
people who are physically fit
Sub-maximal - CORRECT ANSWER - For people who are afraid or aren't knowledgeable
of pushing their limits. Good for children and the elderly
IB SEHS Topic 6 UPDATED ACTUAL
Exam Questions and CORRECT Answers
Standard Deviation - CORRECT ANSWER - a spread of scores around the mean
State why standard deviation is useful - CORRECT ANSWER - Displays the consistency
of each sample
t-test - CORRECT ANSWER - used to determine if two sets of data are significantly
different from each other.
Error bars - CORRECT ANSWER - graphical representation of variability of the data
What constant do we use for error bars? - CORRECT ANSWER -2
Specificity - CORRECT ANSWER - Measuring the skills needed for a sport can see how
well the athlete can maintain that skill when repeatedly doing it.
Accuracy - CORRECT ANSWER - Checking if the instruments you're using in an
experiment are working properly
Reliability - CORRECT ANSWER - if you repeated the test again are you likely to get
similar results
Validity - CORRECT ANSWER - Does the test actually test what is tests
Control group - CORRECT ANSWER - a bunch of people are put into a group that doesn't
get any special treatment for the experiment.
, MGRADES
Why is it important to have an control group? - CORRECT ANSWER - To see if your
hypothesis correlates with the data collected and overcoming learning problems
Randomized groups - CORRECT ANSWER✅✅- 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 - CORRECT ANSWER - 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 - CORRECT ANSWER - 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.
Placebo - CORRECT ANSWER - A harmless substance given to the participants in the
controlled group. The substance won't affect the person's performance during the experiment.
PAR-Q - CORRECT ANSWER - a questionnaire that makes sure the participant doesn't
have any health issues that will put them in danger in the experiment
Field testing - CORRECT ANSWER - tests that can be done without expensive
equipment.
Laboratory testing - CORRECT ANSWER - experiments that are done in a lab. More
accurate than field testing
Maximal - CORRECT ANSWER - testing for a person's maximum ability. Used for
people who are physically fit
Sub-maximal - CORRECT ANSWER - For people who are afraid or aren't knowledgeable
of pushing their limits. Good for children and the elderly
