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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:
77 countries/ areas
Highlight:
1 China4.22
2 Viet Nam4.19
3 Republic of Korea3.97
4 Indonesia3.89
5 Peru3.85
6 Albania3.77
7 Saudi Arabia3.68
8 Jordan3.64
9 Moldova3.62
10 Malaysia3.58
11 Brunei Darussalam3.57
12 Croatia3.55
12 Finland3.55
14 United Arab Emirates3.54
15 Hong Kong, China3.53
16 Mexico3.52
17 Portugal3.51
17 Russian Federation3.51
19 Ukraine3.50
20 Chile3.48
20 Morocco3.48
20 Philippines3.48
20 Singapore3.48
24 Estonia3.46
25 Japan 3.44
26 Argentina3.42
27 Hungary3.40
28 Ireland3.37
28 Panama3.37
28 Spain3.37
28 Thailand3.37
32 Slovenia3.35
33 Sweden3.33
34 Australia3.32
34 Kosovo3.32
36 Kazakhstan3.31
36 Lithuania3.31
36 Turkiye3.31
39 Poland3.30
40 New Zealand3.29
40 United States3.29
42 Belarus3.28
43 Romania3.26
44 Taiwan3.25
45 Costa Rica3.24
45 Malta3.24
47 Canada3.22
47 Switzerland3.22
49 Bosnia and Herzegovina3.21
50 United Kingdom3.19
51 Macao, China3.18
52 Cyprus3.16
52 Greece3.16
52 Italy3.16
55 Latvia3.15
56 Colombia3.14
57 Norway3.09
58 France3.08
59 Qatar3.06
60 Belgium3.04
60 Germany3.04
60 Israel3.04
63 Montenegro3.03
64 Netherlands3.01
65 Denmark3.00
66 Austria2.99
66 Dominican Republic2.99
66 Iceland2.99
69 Bulgaria2.98
70 Georgia2.97
70 Luxembourg2.97
72 Brazil2.90
73 Czech Republic2.87
74 Uruguay2.85
75 Serbia2.81
76 Azerbaijan2.72
77 Slovakia2.68

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

No data for 161 countries.

Source
OECD PISA 2018 Compendia

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data73
Regression equation
Y = -0.599496 X +8.288
Correlation coefficient (r)-0.263
Coefficient of determination (R2)0.069

GDP per capita (current US$)
No. of data77
Regression equation
Y = -21746.094448 X +103598.625
Correlation coefficient (r)-0.239
Coefficient of determination (R2)0.057

Life expectancy at birth - Both sexes (years)
No. of data76
Regression equation
Y = -1.633188 X +82.838
Correlation coefficient (r)-0.104
Coefficient of determination (R2)0.011

Fertility rate, total (births per woman)
No. of data76
Regression equation
Y = 0.016225 X +1.613
Correlation coefficient (r)0.011
Coefficient of determination (R2)0.000

Suicide, age-standardized (per 100 000 population)
No. of data73
Regression equation
Y = -0.721322 X +11.361
Correlation coefficient (r)-0.047
Coefficient of determination (R2)0.002