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KNES 349 Test 2
Test 2
65
Other
Undergraduate 3
10/25/2010

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Term
Which scale of measurement is naming or classifying, categorical, and has no notion of order, magnitude or size?
Definition
Nominal
Term
Which scale of measure of a ranking where the difference between ranks is not comparable?
Definition
Ordinal
Term
Which scale of measure uses an arbitrary point of zero, and an example would be temperature?
Definition
Interval
Term
Which scale of measure has an absolute zero point, like weight or difference and can be used to say someone who is 200 lbs is twice as much as someone who is 100 lbs?
Definition
Ratio
Term
Averages cannot be applied to which type of data?
Definition
Ordinal Data
Term
Which two scales of measure can be subjected to mathematical operations?
Definition
Interval and Ratio numbers
Term
The measures are hierarchical which means?
Definition
They build on each other
Term
What kind of data does the mean give us?
Definition
Ratio and Interval data
Term
What does the mean give us?
Definition
The average
Term
Of mean, median and mode which is the most sensitive? Why?
Definition
Mean, all scores are weighted equally
Term
Of mean, median, and mode which does outliers effect?
Definition
Mean
Term
What does the median represent?
Definition
the middle score (50th percentile)
Term
How do you find the median?
Definition
Order scores from high to low and find the middle score, and to find the position use n+1/2
Term
How do you find the median when there are an even number of values?
Definition
find the mean between the two numbers
Term
When is median preferred?
Definition
when data is skewed or not normally distributed
Term
T/F - The median is affected by outliers.
Definition
False
Term
What does the mode represent?
Definition
The most frequent score
Term
T/F - The mode is easiest to find when data is ordered.
Definition
True
Term
T/F - There can be more than one mode.
Definition
True
Term
What does the skewness affect?
Definition
The shape of distribution
Term
What is the range of skewness?
Definition
+1 to -1
Term
Represents the peakedness or height of the distribution?
Definition
Kurtosis
Term
What type of kurtosis represents a normal curve?
Definition
Mesokurtic
Term
What type of kurtosis represents a wide/shallow curve?
Definition
Platykurtic
Term
What type of kurtosis represents a narrow/tall curve?
Definition
Leptokurtic
Term
How do you find the range?
Definition
high score minus the low score
Term
Of range, variance and standard deviation which is the least stable?
Definition
Range
Term
Of Range, Variance, and Standard Deviation which only shows two scores and not how the rest of the data is distributed?
Definition
Range
Term
What are the 4 steps to find the Variance?
Definition

-Calculate mean

-Subtract the mean from each score

-Take the difference(deviation and square it)

-Add results together and divide the number of scores minus 1

Term
How do you find the Standard Deviation?
Definition
Take the square root of the variance
Term
What puts the score back into the same unit as the raw score and the mean, and is linear along the same line as the mean?
Definition
Standard Deviation
Term
What is the mean and standard deviation for a Z score?
Definition

Mean = 0

Standard Deviation = 1

Term
Which is more common, Z scores or T scores?
Definition
Z scores
Term
What is the Mean and Standard Deviation for T scores?
Definition

Mean = 50

Standard Deviation = 10

Term
What are two components of a correlation coefficient?
Definition
Strength and Direction
Term
What are learned traits, based on abilities, and are also sport specific?
Definition
Skills
Term
What are more innate than skills?
Definition
Abilities
Term
What are 4 ways of objectively measuring skills?
Definition

-Accuracy

-Repetitive-performance tests

-Total Body Movements

-Distance or Power tests

Term
An accuracy test is based on what, and what would be an example?
Definition
Hitting a target, and an example is serve to specific location
Term
What would be a repetitive performance test and what is an example?
Definition
Continuous performance, and number to times volley off wall
Term
What is a Total body movement test, and what is an example?
Definition
Speed tests, and speed through dribbling course
Term
What is a distance or power test and what is an example?
Definition
Generating force, and how far can you throw a softball
Term
What is subjectively assessing skills about?
Definition
Ratings of performance
Term
When subjectively assessing skills what 3 ratings are used to assess performance?
Definition
Global ratings, relative rating, absolute rating
Term
What type of subjective rating assess overall performance
Definition
Global ratings
Term
What type of subjective rating assess performance compared to others in a group
Definition
Relative ratings
Term
What type of subjective rating assess performance based on a fixed scale
Definition
Absolute ratings
Term
In regards to effective testing procedures what would be under pretest duties?
Definition
Time, Forms, Procedures, Instructions, Absences, Make-Ups
Term
In regards to effective testing procedures what would be under testing duties?
Definition
Location, Materials, Cheating, Safety
Term
In regards to effective testing procedures what would be under posttest duties?
Definition
Transcription, Item Analysis, Reporting, Confidentiality
Term
What 6 steps are taken in the process of developing psychomotor tests?
Definition
Characteristics, Review, Pilot Test, Reliability and Validity, Norms, Manual
Term
What represents all people with a common specific characteristic?
Definition
Population
Term
What represents a small subset of the population?
Definition
Sample
Term
What 2 things do you do to ensure that sample characteristics are as close to the population as possible?
Definition
make as large as possible, and randomly select
Term
T/F Pertaining to Confidence Intervals, it is unlikely that the sample mean will match perfectly with population mean.
Definition
True
Term
What gives you a range of values where you are percent?
Definition
Confidence Intervals
Term
The degree to which a person's observed score fluctuates as a result of errors of measurement pertains to what?
Definition
Standard Error of the measurement
Term
What is the number that tells you the strength and direction of a linear relationship between two variables?
Definition
Correlation Coefficient
Term
The direction in a Correlation Coefficient is described as what?
Definition
Positive or Negative
Term
The Strength in a Correlation Coefficient is what?
Definition
Absolute value of a number
Term
If the strength is close to 1 is considered what?
Definition
High
Term
If the strength is close to 0 is considered what?
Definition
Low
Term
Strength is represented as what variable?
Definition
r
Term
When are we confident that r is different from 0?
Definition
When p < .05
Term
When is there more than a 5% chance that r could be 0?
Definition
When p > .05
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