Behavioral Statistics

Front 1

Mathematical Operation

Back 1

1. Square or square root
2. Multiply or divide
3. Operations contained within parentheses.
4. First perform operations within the sqaure root sign, then take the square root of the quantity.
*Perform fractions above and below dividing line prior to dividing.

Front 2

Population

Back 2

Any defined groups of objects, organisms, or events
(contains all members of a defined group)

Front 3

Sample

Back 3

Any subset of the population, usually meant to represent the population.

Front 4

Parameter

Back 4

describes or summarizes a population.
(come from populations)

Front 5

Statistic

Back 5

describes or summarizes a sample and estimates a parameter.
(come from samples)

Front 6

Measurement

Back 6

Assignment of numbers or values to levels of a variable according to a set of rules.
Basis of scientific observation.

Front 7

Independent Variable

Back 7

is manipulated by the researcher.

Front 8

Dependent Variable

Back 8

is measured

Front 9

Confounding Variable

Back 9

is uncontrolled that influenced the dependent variable (independent does this also)

Front 10

Dichotomous Variable

Back 10

has only two categoried (either/or)

Front 11

Discrete Variable

Back 11

increase or decrease by whole units

Front 12

Continuous Variable

Back 12

can theoretically assue infinite number of values

Front 13

Scales of Measurement

Back 13

1.Nominal or Categorical
2.Ordinal
3.Interval
4.Ratio

Front 14

Nominal or Categorical Measurment

Back 14

*Classified based on the presence or absense of qualities
*Frequncy data
*No information provided on order or magnitude of diferences
*Ex: sex, race, religion, political party

Front 15

Ordinal Measurment

Back 15

*Classification according to degree of quality i.e. tall>normal>short
*No information about the magnitude of difference

Front 16

Interval Measurment

Back 16

*uses a meaningful unit of measure
*allows use of basic arithmetic functions
*Ex: shoe size, Fahrenheit scale

Front 17

Ratio Measurment

Back 17

*adds an absolute zero point to interval scale (zero implies total absence of the characteristic
*Ex:height and weight (2:1, 1:5)