Chapter 6: Quantitative Methodology (Key Terms)

A type of research method that investigates the effect of an IV on a DV.

• Correlational study

• Experimental method

• Case study

• Brain imaging

Any action that a researcher has taken in a study to minimize or eliminate the effects of extraneous variables.

• Control

• Blind procedure

• Ethical consideration

• Generalizability

A type of sampling method where the researchers conduct their study on people who are available at the time of the study.

• Random sampling

• Opportunity sampling

• Self-selected sampling

• Purposive sampling

Any factor a researcher must consider in order to reduce possible negative effects of the research on participants or other people.

• Participant variability

• Extraneous variable

• Ethical consideration

• Generalizability

A type of brain imaging that shows images of the activity in the brain while tasks are being performed.

• Magnetic resonance imaging

• Function magnetic resonance imaging

• Positron emission tomography

• Animal experiment

A study that manipulates an independent variable in a naturalistic setting and measures the effects of this.

• True experiment

• Field experiment

• Quasi experiment

• Natural experiment

A type of sampling method where all members of a target population may be asked to participate through the use of a randomized method.

• Random sampling

• Opportunity sampling

• Self-selected sampling

• Purposive sampling

A study that tests the effects of some kind of treatment on a dependent variable, but one or more characteristics of a true experiment can't be met.

• True experiment

• Field experiment

• Quasi experiment

• Natural experiment

The extent to which the findings from a study could be applied to a different context (e.g. other people, places or situations).

• Participant variability

• Extraneous variable

• Ethical consideration

• Generalizability

A type of brain imaging that shows images of the structure (size and shape) of the brain.

• Magnetic resonance imaging

• Function magnetic resonance imaging

• Positron emission tomography

• Animal experiment