Statistics of Variables

Question 0

Multi variable analysis

Answer 0

Comparing 2 or more variables to each other

Ex. Height vs. Arm span

Question 1

Single variable analysis

Answer 1

Comparing of a certain variable to itself

Ex. Height

Question 2

Independent (explanatory) variable

Answer 2

Affects or causes the change in the dependent variable

On the horizontal axis

Question 3

Dependent (response) variable

Answer 3

Is affected by the independent variable

On the y-axis

Question 4

Cause and effect

Answer 4

A change in X makes a change in Y evident in the physical processes

Ex. Height from where an object is dropped

Question 5

Common cause factor

Answer 5

An external variable causes two variables to change in the same way

Ex. warm weather - more geese - more yogurt sales

Question 6

Reverse cause and effect relationship

Answer 6

The dependent and independent variable are reversed in the process of establishing causality

Ex. Smoking & stress

Question 7

Accidental relationship

Answer 7

W/O any casual relationship btwn variables

Question 8

Presumed relationship

Answer 8

Does not seem to be accidental even though no cause and effect relationship or common cause factor is apparent

Ex. Job salary and level of satisfaction

Question 9

Extraneous variables

Answer 9

Affect either the dependent or the independent variable. External variables

Ex. school, academics, tm, eca

Question 10

Experimental groups

Answer 10

The group which the dependent variable is changed

Question 11

Control group

Answer 11

The group for which the independent variable is read constant in a experimental or statistical study