You are in browse mode. You must login to use MEMORY

level: Level 1

Questions and Answers List

level questions: Level 1

Question	Answer
What are the four different measures	1. Central Tendency 2. Variability 3. Skewness and Kurtosis 4. Position
A graphical representation of a frequency distribution	Histogram
The score that divides the distribution into two equal parts, so that half the cases are above it and half below it.	Median
A single number to serve as a representation value around which all the numbers in the set tend to cluster	Central Tendency
What measure of Central Tendency should be used when the variable is a Nominal?	Mode
Defined as the percentage of scores that are below the score in question	Percentile
Extreme values in the distribution	Outliers
Kurtosis that is flat and spread out	Platykurtic
Kurtosis that has higher distributions; values close to the mean are more frequent	Positive Kurtosis
This measures gives us an idea on how spread the data are on their center	Measures of Variability
_____ is sensitive to extreme values	Mean
If S > 0, the distribution is ____ skewed	Positively
This is the measure that is used when outliers are present	Median
Percentile ranks that divide the 100-unit scale by 10s	Deciles
Points that divide the distribution into quarters	Quartiles
Absence of symmetry	Skewness
Describes how data are distributed	Measures of Shape
If S < 0, the distribution is ____ skewed	Negatively
Where are the two inflection points of a normal curve located?	On each side of the mean
Describes the individual scores and its position among the other scores but not the entire set of scores	Percentile
Summing of the scores divided by the number of scores.	Mean
Kurtosis that has flatter distributions; values that are extreme, or far from the mean, are more frequent	Negative Kurtosis
Kurtosis that is normal in shape	Mesokurtic
The difference between the highest and lowest score in the distribution	Range
It is an arithmetic mean	Mean
If S = 0, the distribution is ____	Symmetric
Kurtosis that is high and thin	Leptokurtic
Mode that is used for numerical or categorical data	Multimodal
the variance has the same units as with the original data, similar to the standard deviation	False