What is the primary goal of experimental research?

• To collect descriptive data

• To establish cause-and-effect relationships

• To explore historical events

• To observe natural phenomena without interference

In the example of testing a new study technique, what is the independent variable?

• The type of study technique used

• The number of students in each group

• The students' test scores

• The duration of the study period

Why is experimental research considered reliable for testing hypotheses?

• It uses large sample sizes

• It involves direct manipulation of variables

• It requires minimal resources

• It is conducted in natural settings

What is a criticism of experimental research regarding its setting?

• It lacks ecological validity

• It is too inexpensive

• It is always conducted outdoors

• It is too flexible

What is a potential drawback of conducting experimental research?

• It is always inaccurate

• It is not suitable for any field

• It requires minimal planning

• It can be resource-intensive