Measurement and evaluation of human performance

Question 0

Standard deviation

Answer 0

A measure of the spread of the data values around the mean

Question 1

Mean

Answer 1

Sum of values by the number of values (average)

Question 2

Assuming standard deviation is not skewed: how many of data fall within 1 +- standard deviation

Answer 2

68%

Question 3

Assuming data is not skewed: all data falls within 2 +- standard deviation

Answer 3

95%

Question 4

What does standard deviation tell us if small?

Answer 4

Small sd means that data is closely clustered around the mean value. Data points are close to the same value (mean)

Question 5

What does standard deviation tell us if large?

Answer 5

Means the data is wider spread around the mean. Data points are spread over a larger range of values( data isn’t so reliable)

Question 6

Error bars

Answer 6

Are used to represent the variability of data (sd) graphically

Question 7

What do large error bars indicate?

Answer 7

A large range above and below the mean gives less confidence that the mean is the true value

Question 8

Coefficient of values

Answer 8

The SD represented as a percentage
Calculated as SD/ mean x 100
Acts as reliably when taking repeated measurements

Question 9

The t test

Answer 9

Is used to measure whether there is a significant difference between the means of the two populations

Tells u the probability that two sets of data are the same

Question 10

Null hypothesis

Answer 10

States that there is no significant difference between the two populations

Question 11

Alternative hypothesis

Answer 11

States that there is a significant difference between the two populations

Question 12

If p > 0.05 accept

Answer 12

Null hypo

Question 13

If p< 0.05 accept

Answer 13

Alternative hypothesis

Question 14

Coefficient of values

Answer 14

The SD represented as a percentage
Calculated as SD/ mean x 100
Acts as reliably when taking repeated measurements

Question 15

The t test

Answer 15

Is used to measure whether there is a significant difference between the means of the two populations

Tells u the probability that two sets of data are the same

Question 16

Null hypothesis

Answer 16

States that there is no significant difference between the two populations

Question 17

Alternative hypothesis

Answer 17

States that there is a significant difference between the two populations

Question 18

If p > 0.05 accept

Answer 18

Null hypo

Question 19

If p< 0.05 accept

Answer 19

Alternative hypothesis

Question 20

Correlation

Answer 20

Is a term used to define the extent of relatedness or relationship between two variables

Question 21

Health related fitness

Answer 21

Physiologically based and determines the individuals ability to meet the physical demands of an activity

Question 22

Components of health related fitness

Answer 22

Strength, local muscular endurance, cardio respiratory, flexibility and body composition

Question 23

Healthy fat of men

Answer 23

15-18%

Question 24

Healthy fat of women

Answer 24

20-25%

Question 25

Strength

Answer 25

Ability of muscles to exert a force to overcome a resistance

Question 26

Local muscular endurance

Answer 26

A single muscles ability to perform sustained work (cycling)

Question 27

Cardio respiratory fitness

Answer 27

“Stamina” the ability of the body to supply enough energy to sustain sub maximal level of exercise

Question 28

Benefits of cardio fitness

Answer 28

Improved metabolism
Efficient delivery of oxygen
Faster removal of waste
Decreased level of stress

Question 29

Flexibility

Answer 29

The movement available by our joints, usually controlled by the length of our muscles

Question 30

Benefits of flexibility

Answer 30

Prevents injury
Improves posture
Maintains healthy joints

Increased speed and power of muscle contraction

Improves balance during movement

Question 31

Body composition

Answer 31

The amount of fat compared to lean body mass (muscle bone connective tissue