Exam (elaborations)
KNES 367 Exam 2 questions with correct answers
- Course
- Knes
- Institution
- University Of Maryland - University College
KNES 367 Exam 2 questions with correct answers
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KNES 367 Exam 2 questions with correct answersDefine Correlation Correct Answer-A statistical technique used to
determine the relationships between two or more variables
A linear association occurs between how many variables? Correct
Answer-Two
What does correlations identify? Correct Answer-Direction, magnitude
and statistical significance
What does the directional portion of a correlation describe? Correct
Answer-if it is positive or negative correlation
How do you determine is a correlation is statistically significant?
Correct Answer-In order for it to be statistical significance you must
looking for a P-value at or below .05 to make it statistical significance.
Define correlation coefficient Correct Answer-A quantitative value of
the relationship between two or more variables that can range from .00
to 1.00 in either a positive or negative direction.
If given a correlation coefficient between two variables how can you
find the amount of variability explained? Correct Answer-Square the
correlation coefficient to find the common variance
, Define positive correlation Correct Answer-A relationship between two
variables in which a small/large value for one variable is associated with
another small/large variable
If two variables are moving in the same direction this can be identified
as a (positive/negative) correlation? Correct Answer-Positive
Define negative correlation Correct Answer-A relationship between two
variables in which a small value for the first variable is associated with a
large value for the first variable.
If one variable is rising and the other variable is lowering this can be
identified as a (positive/ negative) correlation? Correct Answer-Negative
Define pearson product correlation Correct Answer-The most commonly
used method of computing correlation between two variables; also called
interclass correlation, simple correlation, or Pearson r
What is the most common method used for computing a correlation
between two variables? Correct Answer-Pearson Product correlation
(T/F): Both variables in a person product correlation are normally
distributed Correct Answer-True
Define spearman correlation Correct Answer-Used to determine the
relationship between two ordinal variables or an ordinal and a ratio
variable
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