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Final Exam Slides
Week 2 Slides
32
Business
Undergraduate 3
10/24/2011

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Term
Correlation Coefficients
Definition
A NUMERICAL INDEX THAT REFLECTS THE RELATIONSHIP BETWEEN TWO VARIABLES
Term
Correlation Coefficients
Definition
This shows the relationship of how the value of one variable changes when the value of another value changes
Term
This value is the measure of the explanatory power of regression analysis
Definition
r square value
Term
Direct or Positive correlations
Definition
if variables change in the same direction
Term
Indirect or Negative Correlations
Definition
if variables change in opposite directions
Term
A CORRELATION RANGES IN VALUE FROM
Definition
-1 TO +1
Term
THE ABSOLUTE VALUE OF THE COEFFICIENT REFLECTS THE
Definition
STRENGTH OF THE CORRELATION
A CORRELATION OF -.70 IS STRONGER THAN A CORRELATION OF +.50.
Term
Interpret a .8 to 1.0 correlation score
Definition
VERY STRONG RELATIONSHIP
Term
Interpret a .6 to .8 correlation score
Definition
Strong relationship
Term
Interpret a .4 to .6 correlation score
Definition
moderate relationship
Term
Interpret a .2 to .4 correlation score
Definition
weak relationship
Term
Interpret a .0 to .2 correlation score
Definition
weak or no relationship
Term
THE ASSIGNMENT OF VALUES TO OUTCOMES FOLLOWING A SET OF RULES
which are
Definition
THE RULES ARE THE SCALES OF MEASUREMENT
Term
NOMINAL measurement
Definition
fits into one and only one class
Term
ordinal measurement
Definition
in order
Term
interval measurement
Definition
based on underlying continuum
Term
ratio measurement
Definition
characterized by an absolute zero on the scale
Term
Reliability
Definition
WHETHER A TEST, OR WHATEVER YOU USE AS A MEASURMENT TOOL, MEASURES SOMETHING CONSISTENTLY.
Term
TEST-RETEST RELIABILITY-
Definition
used TO EXAMINE WHETHER A TEST IS RELIABLE OVER TIME
MUST USE THE SAME TEST
Term
parallel forms reliability
Definition
used to examine equivalence or similarity
Term
internal consistency reliability
Definition
used to determine the items on a test are consistent with one another
Term
iterrater reliability
Definition
measure of how much two raters agree on judgment
Term
validity
Definition
THE PROPERTY OF AN ASSESSMENT TOOL THAT INDICATES THAT THE TOOLS DOES WHAT IT SAYS IT DOES
Term
content validity
Definition
achievement tests
Term
criterion validity
Definition
reflects a set of abilities in a current or future setting
Term
construct validity
Definition
most difficult
Term
hypoethesis
Definition
educated guess
Term
null hypothesis
Definition
A STATEMENT OF EQUALITY BETWEEN SET OF VARIABLES, NUMBERS, TEXT, AND LOGICAL VAULES
Term
______________ BASICALLY STATES THERE IS NO RELATIONSHIPS BETWEEN VARIABLES
Definition
null hypothesis
Term
research hypothesis
Definition
STATES THERE IS A RELATIONSHIP BEWEEN VARIABLES
Term
non directional research hypothesis
Definition
REFLECTS A DIFFERENCE BETWEEN GROUPS, BUT DIRECT IS NOT SPECIFIED
Term
directional research hypothesis
Definition
REFLECTS A DIFFERENCE AND DIRECTION IS SPECIFIED
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