(A)

(B)

(C)

(D)

(E)
$2 - 1$

question 11

Multiple Choice

(a)

(b)

(c)

(d)

(e)


Figure $2 - 1$

-Which switch in Figure 2-1 could be used to switch two inputs to different output positions?

• A)graph (a)
• B)graph (b)
• C)graph (c)
• D)graph (d)
• E)graph (e)

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Definitions:

Independent Variable

The variable that is manipulated in an experiment to test its effects on the dependent variable.

Dependent Variable

A variable in an experiment that is expected to change in response to manipulations of the independent variable.

Correlational Study

A research methodology that examines the relationship or association between two or more variables without determining causal direction.

Experimental Study

A research methodology that manipulates one variable to determine if it causes a change in another variable, usually in a controlled environment.