The Basics
Math/Measures
Freqs (for) Geeks
Centers & Dispersion
Hypothetically Speaking
100
This Greek symbol is an instruction meaning "sum the following".
What is Sigma?
100
Variable manipulated by the researcher.
What is the Independent Variable?
100
If your data represent categories you could use this kind of chart to display them...but don't expect any refreshments
What is a bar chart?
100
Measure of central tendency most subject to outliers?
What is the mean?
100
This shorthand symbol is used to represent the Null Hypothesis.
What is H0?
200
This type of research can establish causation.
What is a experimental research?
200
Scale of measurement with categories.
What is the nominal scale?
200
The formula 1-n represents what kind of range?
What is the inclusive range?
200
The square root of the variance.
What is the standard deviation?
200
A non-directional hypothesis uses this kind of test:
What is a two-tailed test?
300
Type of sampling necessary to create representative sample.
What is random sampling?
300
This variable represents your outcome data.
What is the dependent variable?
300
A curve continuing to approach but never touching the horizontal axis is said to be:
What is asymptotic?
300
Another name for the 50th percentile.
What is the median?
300
Too often people say they "have a theory" when really they are referring to this construct:
What is a hypothesis?
400
A number (e.g., mean) calculated on population data rather than sample data.
What is a parameter?
400
This differentiates the ratio from the interval scale of measurement.
What is a meaningful or true zero?
400
Value on measurement scale below which a specified percentage of scores fall.
What is a percentile or percentile point?
400
Measure of central tendency often used with skewed distributions.
What is the median?
400
A measure of how well a sample represents the population
What is sampling error?
500
Method of knowing that relies on objective assessment.
What is the scientific method?
500
In SPSS, a standard correlation is listed as this test type:
What is Bivariate?
500
If you take a standardized test (e.g. SAT, ACT, GRE) you will receive this kind of numeric indicator of your performance along with your raw score.
What is a percentile rank?
500
What is the formula for the sum of squares?
500