1. What is an intervening variable?

A) Variable that is situated between the two other variables in time, creating a type of association
B) Variable that is situated between the two other variables in time, creating a type of a spurious relationship.
C) Variable that is situated between the two other variables in time, creating a type of temporal ordering
D) a recursive process

2. What are the characteristics of a true experimental design?

A) at least one experimental and one control group
B) assignment to the experimental and control groups via randomization
C) treatment administered to the experimental group via manipulation of an independent variable
D) all of the above

3. What is a random assignment?

A)Characteristic of a true experiment in which subjects or units of interest are randomly placed in an experimental or a control group.
B)The random nature of the assignment maximizes the chances that the experimental and control groups are equivalent.
C)all of the above
D)none of the above

4. What are the characteristics of pair-matching?

A)Also called “matched-pairs design.”
B)It is a matching approach used in true experiments
C)the researcher creates pairs of subjects or units of interest based on relevant characteristics that are identified prior to the experiment
D)all of the above

5. What are block variables?

A)variables the researcher believes will affect response to the treatment.
B)are used to create blocks used in block matching.
C)all of the above
D)none of the above

6. What are the characteristics of manipulation of an independent variable?

A) One of three characteristics of true experimental research.
B) The control or manipulation of the independent variable must be done by the researcher.
C) The manipulation of the independent variable is also referred to as the treatment.
D) all of the above