Unit 6: Measurement of Human Performance

The spread of scores around the mean Can say something about inconsistency - 68% is within 1 SD - 95% is within 2 SD

Graphical representation of variability of data - Can depict SD from the mean

Ratio of SD to the mean expressed as a percentage Provides similar info to SD but the use of % - easier for people to relate/understand

V = (100 x SD)/MEAN %

Inferential (conclusion based off evidence + reasoning) statistical test Measures whether differences between group means are due to the independent variable or due to chance

Paired: Same people are being compared Unpaired: Participants are not paired/results from different people are compared

The presence of a relationship between two variables

Measures the strength and the direction of a linear relationship between two variables -1

Indicates the strength of correlation and it is a statistical measure of how close the data points are in accordance to the fitted regression line 0

Correlation does not equal correlation Just because is a relationship between 2 variables, it does not mean one variable is the cause of the other variable. • there can be no correlation • two variables can be correlated due to a third variable

Main factors involved when measuring individual fitness levels: SARV - specificity, accuracy, reliability, validity Performance test should have this

The exercise/testing is particular/relating to the sport

Instruments in which measurements are obtained are working properly

Degree to which a measure would produce the same result from one occasion to another

Test actually measures what it claims to measure

No treatment is given To be sure if changes are due to the independent variable and not due to a learning or habituation effect

Substance or other kind of treatment that looks just like a regular treatment or medicine but is harmless and does not affect performance

The participant does not know their treatment

Both the participant and experimenter does not know the treatment/who is given the placebo Ensures that experimenters do not accidentally influence the participants

Randomly allocate individuals to the groups

At the start, the groups are fairly evenly matched Based on pre-test (e.g. based on experience)

Used to measure components of fitness required for the individual to undertake physical activity (often strenuous physical activity) Recommended to take before asking someone to undertake physical activity Should be completed when asking for training advice or joining a sports/exercise club Should be completed before the individual’s take part in an experiment

Field test - done in a natural environment; not everyone has access to labs; not as accurate or reliable Laboratory test - done in a laboratory; meets the criteria and more accurate E.g. measuring V02 max Field - Cooper’s 12 minute run test Laboratory - Treadmill

Measure the maximum amount a person can do e.g. VO2 max, maximum weight one can lift (1RM)