Symbol Mania
N (capitol letter)
What is the symbol for population
A value that represents the MIDDLE score in a set.
What is MEDIAN? (p. 36)
What researchers write prior to an investigation for the express purpose of being ACCEPTED or REJECTED via statistical test.
What is Hypothesis vs Null Hypothesis
Male vs Female
What is Nominal?
A GENERAL TERM that utilizes a single value (number) to represent a set of values (numbers/scores)
What is CENTRAL TENDENCY? (Gravetter & Wallnau p. 86)
n (lower case letter)
What is the symbol for a sample
A value that represents the MOST FREQUENT score in a set.
What is MODE (p. 36)
Scores that represent the number of points awarded for correct responses vs their distance and direction from the mean of a normal distribution.
What is RAW vs STANDARD or Z scores.
The strongest, most specific level of measurement
What is Ratio?
A VALUE (in decimal form) that represents what % of the findings did not occur by chance alone.
What is a SIGNIFICANCE LEVEL or p-value (p. 31)
H0
What the symbol for a Null Hypothesis (p.34)
A measure of central tendency best suited for NOMINAL levels of data where whole numbers (vs decimals) are preferred for reporting.
What MODE (G&W, p. 88)
Variables (measures) that represent CONDITIONS APPLIED during an experimental investigation vs Variables (measures) that represent OUTCOMES of an experimental investigation
What is INDEPENDENT vs. DEPENDENT
Levels of measurement in order from weakest to strongest
What is Nominal, Ordinal, Interval, Ratio
A curve that is SYMMETRIC at the vertical axis through the mean.
What is the NORMAL curve? (p. 40)
∑
What is the symbol for SUM (p.117)
A measure of central tendency best suited for intervallic or ratio levels of data in a NORMAL or SYMMETRIC distribution.
What the MEAN? (G&W p. 86)
A LARGE group vs. a SMALLER group that is representative of a large group.
What is POPULATION vs SAMPLE
Data produced from a likert-type scale?
What is NOMINAL
An errant NON-REJECTION of a null-hypothesis (FALSE NEGATIVE)
What is a TYPE II error. (p. 34)
s2
What is the symbol for VARIANCE? (p.37, 118)
A measure of central tendency best suited for intervallic or ratio levels of data in a SKEWED or ASYMMETRIC distribution; with extreme or missing scores.
What is MEDIAN? (Gravetter & Wallnau p. 86)
Makes INFERENCE about a large group from a SMALLER group vs. describing CHARACTERISTICS of a LARGE GROUP.
What is INFERENTIAL vs DESCRIPTIVE Statistics (p.33)
Electronic tuner readings: cents sharp or flat.
What is Interval
An errant REJECTION of a null-hypothesis (FALSE POSITIVE)
What is a TYPE I error? (p. 34)