Examine the two figures from the article Secular Changes in Children's Ability to Delay Gratification in the Past 50 Years. 

 

Answer the following questions about each figure:
 

1. The following questions are regarding Figure 1.
2.  
Figure 1: Experts' prediction of change in delay of gratification over time. N = 260

 

• How many experts participated in this study?
• What did they predict for the results in change of delay of gratification over time?
• What does the larger yellow piece of the pie chart represents?

 

Figure 2: Meta-regression on changes in the ability of children to delay gratification over the past 50 years on the marshmallow test, conditioning on age. Bubbles are weighted by the meta[1]analytic standard errors and represent raw delay times, not age-conditioned times. Black bubbles indicate meta-analytic outliers

 

2.  The following questions are regarding Figure 2.

 

 

• What does in the line in this graph represent?
• What does it mean when a bubble is smaller?
• What is your conclusion based on this graph?

Decrease: 52% Increase: 16% No Change: 20% Contrasting Forces: 7% Not enough data: 5% Figure 1: Experts prediction of change in delay of gratification over time. N-260