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Question: You have just read a long and rather difficult two-page text about fluctuations in the water level of a lake in Africa. You have to write a summary.How do you rate the usefulness of the following strategies for writing a summary of this two-page text? - I write a summary. Then I check that each paragraph is covered in the summary, because the content of each paragraph should be included.
Choices: 1 "Not useful at all" - 6 "Very useful"
Data: Average score
Period:
Area:
10 countries/ areas
Highlight:
1 Republic of Korea3.97
2 Japan 3.44
3 Sweden3.33
4 Australia3.32
5 United States3.29
6 Canada3.22
7 United Kingdom3.19
8 Italy3.16
9 France3.08
10 Germany3.04

Note
The data of Azerbaijan are collected only in Baku. The data of China are collected only in Beijing, Shanghai, Jiangsu, and Zhejiang.

Source
OECD PISA 2018 Compendia

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data10
Regression equation
Y = -1.097721 X +10.392
Correlation coefficient (r)-0.603
Coefficient of determination (R2)0.364

GDP per capita (current US$)
No. of data10
Regression equation
Y = -13120.595024 X +93083.746
Correlation coefficient (r)-0.293
Coefficient of determination (R2)0.086

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = 2.780200 X +72.704
Correlation coefficient (r)0.372
Coefficient of determination (R2)0.138

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = -0.802578 X +4.114
Correlation coefficient (r)-0.763
Coefficient of determination (R2)0.582

Suicide - all ages (per 100,000 population)
No. of data10
Regression equation
Y = 19.700885 X -51.122
Correlation coefficient (r)0.870
Coefficient of determination (R2)0.757