In the graph below,the vertical axis represents average real GDP growth for 65 countries over the period 1960-1995,and the horizontal axis shows the average trade share within these countries. This is an example of
A)cross-sectional data.
B)experimental data.
C)a time series.
D)longitudinal data.

Question

In the graph below,the vertical axis represents average real GDP growth for 65 countries over the period 1960-1995,and the horizontal axis shows the average trade share within these countries.  This is an example of
A)cross-sectional data. 
B)experimental data. 
C)a time series. 
D)longitudinal data.

Quizplus · Accepted Answer

Cross-sectional data is data collected at a single point in time, such as this graph where the GDP growth and trade share are measured for 65 countries over the period of 1960-1995. The other options do not apply: experimental data involves manipulating variables in a controlled setting, a time series tracks changes over time for a single entity, and longitudinal data tracks changes over time for the same group of entities.

In the Graph Below,the Vertical Axis Represents Average Real GDP