Longitudinal Study

Question 1

(+)

Answer 1

The long term effects of exposure to a particular treatment can be investigated.

Question 2

(++)

Answer 2

You gain a fuller and probably more accurate answer to the research question under investigations.

Question 3

(+++)

Answer 3

By studying the same participants overtime, the problem of individual differences between participants affecting the results is eliminated.

Question 4

(-)

Answer 4

Over time the researcher may become attached to the participants which may reduce the objectivity of the research.

Question 5

(–)

Answer 5

They are relatively costly.

Question 6

(—)

Answer 6

Subject attrition. This is where participants drop out of the research over time which may not only reduce the sample size but may have a significant impact on the results obtained.

Question 7

Longitudinal study.

Answer 7

This is where participants are studied over a significant period of time. The amount of data collected from participants is substantial.