DP Sports, Exercise and Health Science Questionbank
6.1. Statistical analysis
Description
[N/A]Directly related questions
- 20N.1.SL.tz0.27: What does standard deviation represent? A. Deviation of negative values from a mean B....
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21M.2.HL:.tz0.6a:
A student’s study found a strong correlation between grip strength and VO2max.
Outline why the student should treat their results with caution.
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21M.1.SL.tz0.28:
What does a large standard deviation indicate?
A. The data is clustered closely to the mean.
B. The data is spread widely around the mean.
C. The data is normally distributed.
D. The data is not normally distributed.
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21M.1.SL.tz0.27:
An athlete completed five timed trials of a 20 m sprint test. What is the mean time?
A. 3.90 s
B. 3.95 s
C. 4.00 s
D. 4.05 s
- 21N.1.SL.tz0.27: A group of baseball players hit both left handed and right handed. The mean distance travelled by...
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21N.1.HL:.tz0.23:
A statistical analysis found that the average professional racing cyclist could sustain an average power output of 6.0 watts per kilogram (W kg–1) with a standard deviation of 0.5 W kg–1. What percentage of the total spread of the data will be represented by a range in power from 5.0–7.0 W kg–1?
A. 68 %
B. 90 %
C. 95 %
D. 99 %
- 21N.1.HL:.tz0.24: What is the benefit of using the coefficient of variation over standard deviation? A. The...
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21N.2.SL.tz0.1e:
Comment on the meaning of the standard deviation with reference to Table 1.
- 21N.2.SL.tz0.1d: Identify the sport with the smallest standard deviation for eccentric rate of force development.
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21N.2.SL.tz0.7c:
Analyse how research design and statistical analysis aid the validity of studies conducted by sports scientists.
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21N.2.HL:.tz0.2c:
Comment on the meaning of the standard deviation, with reference to the data in Figure 1.
- 22M.2.HL:.tz0.2b: Calculate the percentage error difference between the 10 cm bench and the 30 cm bench at 80 steps...
- 22M.2.SL.tz0.1a.iv: The results in Figure 1 are inconclusive for fat intake in the moderate training load group....
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22M.1.SL.tz0.28:
A series of fitness tests were conducted before and after a training programme to evaluate the effectiveness of the programme. The table shows the mean results and probability (p) values.
Which fitness component shows no significant change?
A. Speed
B. Agility
C. Reaction time
D. Power
- 22M.2.HL:.tz0.2a: Identify the bench height that has the greatest percentage error at 120 steps per minute.
- 16N.2.SL.tz0.6d: Outline why sports science students must be careful when interpreting the correlation between two...
- 16M.1.SL.tz0.27: What does standard deviation represent? A. The ratio of the correlation to the mean B. A causal...
-
17M.1.SL.tz0.30:
What do the error bars in the graph say about data?
[Source: © International Baccalaureate Organization 2017]
A. The data for Group 1 has a lower mean value.
B. The data for Group 2 has a higher degree of variability.
C. The data for Group 1 has a higher degree of accuracy.
D. The data for Group 1 and 2 has the same degree of coefficient of variation.
- 16N.1.SL.tz0.27: What is the mean of these three javelin throws? Throw 1: 40 metres; Throw 2: 53 metres; Throw 3:...
- 17N.1.SL.tz0.27: What percentage of the normal distribution lies within ±1 standard deviation of the mean? A....
- 17N.1.SL.tz0.28: Which is the equation for coefficient of variation? A. Coefficient of variation = standard...
- 17N.1.SL.tz0.26: What do small standard deviation error bars show?
- 18N.1.SL.tz0.27: What can be represented by error bars on a graph? A. Ratio of the standard deviation to the mean...
-
18N.1.HL:.tz0.22:
What can be represented by error bars on a graph?
A. Ratio of the standard deviation to the mean value of a set of data
B. Variability of a set of data from the median
C. Variability of the mode value of a set of data
D. Variability of a set of data from the mean
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18N.1.HL:.tz0.24:
Which is the mean value for the post-training test score?
A. 13
B. 15
C. 16
D. 17
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18N.2.SL.tz0.1a.iv:
A two-tailed, unpaired t-test was conducted on the data. The calculations yielded the following results:
- comparing low and moderate training level yielded p > 0.05
- comparing moderate and high training level yielded p < 0.05
- comparing low and high training level yielded p < 0.01.
Comment on the meaning of the results from the t-test.
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19M.2.SL.tz0.1d:
Explain the reason for using a control condition in this study design.
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19M.2.SL.tz0.1a:
Identify the time and condition with the highest mean sprint speed.
-
19M.2.HL:.tz0.1e:
Comment on the meaning of the results from the t-test.
-
19M.2.SL.tz0.1c:
Using the data, discuss the hypothesis that plyometric exercise can improve sprint performance.
-
19M.2.HL:.tz0.1c:
Using the data, discuss the hypothesis that plyometric exercise can improve sprint performance.
-
19M.2.SL.tz0.1b:
Calculate the difference in mean sprint speed, in m s–1, between baseline and at 4 minutes for the plyometric condition.
-
19M.2.HL:.tz0.1a:
Identify the time and condition with the highest mean sprint speed.
-
19M.2.HL:.tz0.1b:
Calculate the difference in mean sprint speed, in m s–1, between baseline and at 4 minutes for the plyometric condition.
- 19M.1.SL.tz0.27: What is coefficient of variation? A. The ratio of the standard deviation to the mean expressed...
-
19M.1.SL.tz0.26:
What can be represented by error bars on graphs?
A. Reliability of data
B. One standard deviation of data
C. Percent change of data
D. Validity of data
-
19N.1.SL.tz0.27:
What describes the difference between the two sets of group data in the table?
[Source: copyright International Baccalaureate Organization, 2019]
- 19N.2.HL:.tz0.1c: Using the statistical data, comment on the performance of trapping by the variable practice and...
Sub sections and their related questions
6.1.1. Outline that error bars are a graphical representation of the variability of data.
-
17M.1.SL.tz0.30:
What do the error bars in the graph say about data?
[Source: © International Baccalaureate Organization 2017]
A. The data for Group 1 has a lower mean value.
B. The data for Group 2 has a higher degree of variability.
C. The data for Group 1 has a higher degree of accuracy.
D. The data for Group 1 and 2 has the same degree of coefficient of variation.
- 17N.1.SL.tz0.26: What do small standard deviation error bars show?
- 18N.1.SL.tz0.27: What can be represented by error bars on a graph? A. Ratio of the standard deviation to the mean...
-
19M.1.SL.tz0.26:
What can be represented by error bars on graphs?
A. Reliability of data
B. One standard deviation of data
C. Percent change of data
D. Validity of data
-
18N.1.HL:.tz0.22:
What can be represented by error bars on a graph?
A. Ratio of the standard deviation to the mean value of a set of data
B. Variability of a set of data from the median
C. Variability of the mode value of a set of data
D. Variability of a set of data from the mean
- 21N.1.SL.tz0.27: A group of baseball players hit both left handed and right handed. The mean distance travelled by...
6.1.2. Calculate the mean and standard deviation of a set of values.
- 16N.1.SL.tz0.27: What is the mean of these three javelin throws? Throw 1: 40 metres; Throw 2: 53 metres; Throw 3:...
-
19M.2.SL.tz0.1a:
Identify the time and condition with the highest mean sprint speed.
-
19M.2.SL.tz0.1b:
Calculate the difference in mean sprint speed, in m s–1, between baseline and at 4 minutes for the plyometric condition.
-
19M.2.SL.tz0.1c:
Using the data, discuss the hypothesis that plyometric exercise can improve sprint performance.
-
19M.2.HL:.tz0.1a:
Identify the time and condition with the highest mean sprint speed.
-
19M.2.HL:.tz0.1b:
Calculate the difference in mean sprint speed, in m s–1, between baseline and at 4 minutes for the plyometric condition.
-
18N.1.HL:.tz0.24:
Which is the mean value for the post-training test score?
A. 13
B. 15
C. 16
D. 17
- 20N.1.SL.tz0.27: What does standard deviation represent? A. Deviation of negative values from a mean B....
-
21M.1.SL.tz0.27:
An athlete completed five timed trials of a 20 m sprint test. What is the mean time?
A. 3.90 s
B. 3.95 s
C. 4.00 s
D. 4.05 s
- 21N.2.SL.tz0.1d: Identify the sport with the smallest standard deviation for eccentric rate of force development.
6.1.3. State that the statistic standard deviation is used to summarize the spread of values around the mean, and that within a normal distribution approximately 68% and 95% of the values fall within plus or minus one or two standard deviations respectively.
- 16M.1.SL.tz0.27: What does standard deviation represent? A. The ratio of the correlation to the mean B. A causal...
- 17N.1.SL.tz0.27: What percentage of the normal distribution lies within ±1 standard deviation of the mean? A....
-
21N.1.HL:.tz0.23:
A statistical analysis found that the average professional racing cyclist could sustain an average power output of 6.0 watts per kilogram (W kg–1) with a standard deviation of 0.5 W kg–1. What percentage of the total spread of the data will be represented by a range in power from 5.0–7.0 W kg–1?
A. 68 %
B. 90 %
C. 95 %
D. 99 %
-
21N.2.SL.tz0.1e:
Comment on the meaning of the standard deviation with reference to Table 1.
-
21N.2.HL:.tz0.2c:
Comment on the meaning of the standard deviation, with reference to the data in Figure 1.
6.1.4. Explain how the standard deviation is useful for comparing the means and the spread of data between two or more samples.
- 19N.2.HL:.tz0.1c: Using the statistical data, comment on the performance of trapping by the variable practice and...
-
21M.1.SL.tz0.28:
What does a large standard deviation indicate?
A. The data is clustered closely to the mean.
B. The data is spread widely around the mean.
C. The data is normally distributed.
D. The data is not normally distributed.
- 21N.1.SL.tz0.27: A group of baseball players hit both left handed and right handed. The mean distance travelled by...
- 22M.2.SL.tz0.1a.iv: The results in Figure 1 are inconclusive for fat intake in the moderate training load group....
6.1.5. Outline the meaning of coefficient of variation.
- 17N.1.SL.tz0.28: Which is the equation for coefficient of variation? A. Coefficient of variation = standard...
- 19M.1.SL.tz0.27: What is coefficient of variation? A. The ratio of the standard deviation to the mean expressed...
- 21N.1.HL:.tz0.24: What is the benefit of using the coefficient of variation over standard deviation? A. The...
6.1.6. Deduce the significance of the difference between two sets of data using calculated values for t and the appropriate tables.
-
19M.2.SL.tz0.1d:
Explain the reason for using a control condition in this study design.
-
19M.2.HL:.tz0.1c:
Using the data, discuss the hypothesis that plyometric exercise can improve sprint performance.
-
19M.2.HL:.tz0.1e:
Comment on the meaning of the results from the t-test.
-
18N.2.SL.tz0.1a.iv:
A two-tailed, unpaired t-test was conducted on the data. The calculations yielded the following results:
- comparing low and moderate training level yielded p > 0.05
- comparing moderate and high training level yielded p < 0.05
- comparing low and high training level yielded p < 0.01.
Comment on the meaning of the results from the t-test.
-
19N.1.SL.tz0.27:
What describes the difference between the two sets of group data in the table?
[Source: copyright International Baccalaureate Organization, 2019]
- 19N.2.HL:.tz0.1c: Using the statistical data, comment on the performance of trapping by the variable practice and...
-
22M.1.SL.tz0.28:
A series of fitness tests were conducted before and after a training programme to evaluate the effectiveness of the programme. The table shows the mean results and probability (p) values.
Which fitness component shows no significant change?
A. Speed
B. Agility
C. Reaction time
D. Power
