Chapter 7: Experimental research

What is definition that more closely relates to Experimental research strategy?

• Establish the existence of a cause-and-effect relationship between two variables.

• Establish the existence of a cause-and-effect relationship between two experiments

• Establish the laws of nature through a clear definition and experimental procedure

• Provides evidence for a research question

What elements most be present to accomplish the goal of an experimental study?

(a)  

The following definition is associated with what key concept?

The researcher changes the value of a variable to create a set of two or more treatment conditions

• Control

• Manipulation

• Comparison

• Measurement

The following definition is associated with what key concept?

A second variable is measured for a group of participants to obtain a set of scores in each treatment condition

• Measurement

• Control

• Manipulation

• Comparison

The following definition is associated with what key concept?

Consistent differences between treatments provide evidence that the manipulation has caused changes in the scores.

• Measurement

• Control

• Manipulation

• Comparison

The following definition is associated with what key concept?

Other variables outside of the research plan are handled to limit their influence on results.

• Manipulation

• Control

• Comparison

• Measurement

True or false.

Any type of research beyond the 4 concepts of control, manipulation, measurement and comparison are real experiments.

• True

• False

An experiment involve manipulating _______ variable and Measuring ________ variable.

• One, third

• Two, second

• One, Second

• Two, One

Which statement(s) are part of the definition of an experiment?

• Manipulating one variable, measuring a second variable

• Comparing the scores between treatments

• Controlling all other variables

• All of the above

What does manipulating a variable does?

(a)