8th Grade Performance Task
Contributed by: Third International Math and Science Study (TIMSS)
Unit Name: Rubber band
Unit Content: Physical Science
Unit Theme:
Unit Statistics:
Rubber Band: Average Percentage Score
on Items
| Country |
Overall Task Average |
Average Percentage Scores on
Items |
Item 1
Measure Lengths |
| Presentation |
Data Quality |
| 2 points |
3 points |
| Singapore |
80 (1.5) |
95 (1.3) |
99 (0.7) |
| Scotland |
75 (1.8) |
95 (1.7) |
96 (1.6) |
| Canada |
71 (2.0) |
87 (2.0) |
95 (1.4) |
| Sweden |
70 (2.4) |
83 (2.8) |
93 (1.8) |
| Switzerland |
67 (1.9) |
93 (2.2) |
93 (1.9) |
| New Zealand |
65 (1.8)
|
89 (1.8) |
93 (1.4) |
| Czech Republic
|
65 (3.6)
|
81 (2.3) |
86 (2.6) |
| Norway |
63 (1.9)
|
80 (2.6) |
96 (1.2) |
| Cyprus |
59 (2.3)
|
83 (3.1) |
87 (2.9) |
| Iran, Islamic Rep. |
56
(5.4) |
83 (5.4) |
80 (6.4) |
| Spain |
51 (2.0) |
68 (3.3) |
75 (3.0) |
| Portugal |
51 (2.3) |
78 (3.0) |
83 (3.5) |
Rubber Band Task: Average Percentage
Score on Items
Countries not satisfying guidelines for sample participation rates
| Country |
Overall Task Average |
Average Percentage Scores on
Items |
Item 1
Measure Lengths |
| Presentation |
Data Quality |
| 2 points |
3 points |
| Australia |
64 (2.4) |
92 (2.2) |
92 (1.8) |
| England |
79 (1.4) |
95 (1.5) |
98 (0.9) |
| Netherlands |
70 (1.9) |
89 (2.1) |
95 (1.3) |
| United States |
63 (2.4) |
83 (3.1) |
88 (2.3) |
Rubber Band Task: Average Percentage
Score on Items
Countries not meeting age/grade specifications
| Country |
Overall Task Average |
Average Percentage Scores on
Items |
Item 1
Measure Lengths |
| Presentation |
Data Quality |
| 2 points |
3 points |
| Columbia |
40 (3.7) |
58 (7.4) |
67 (5.8) |
| Romania |
45 (3.0) |
87 (3.1) |
87 (3.1) |
| Slovenia |
64 (1.7) |
93 (1.6) |
93 (1.6) |
Rubber Band Task: Average Percentage
Score on Items
Countries not satisfying guidelines for sample participation rates
| Country |
Overall Task Average |
Average Percentage Scores on
Items |
Item 1
Measure Lengths |
| Presentation |
Data Quality |
| 2 points |
3 points |
| International Average |
63 (0.6) |
85 (0.7) |
88 (0.7) |
Rubber Band Task: Average Percentage
Score on Items
| Country |
Average Percentage Scores on
Items |
Item 2
Graph Results |
Item 3
Calculate Increase |
Item 4
Describe Trend
|
Item 5
Predict Length |
Item 6
Explain Prediction |
| 2 points |
3 points |
2 points |
1 point |
2 points |
| Singapore |
67 (2.3) |
67 (4.2) |
87 (1.7) |
84 (3.0) |
61 (2.3) |
| Scotland |
69 (2.8) |
57 (3.7) |
73 (2.6) |
78 (4.2) |
54 (3.8) |
| Canada |
66 (3.2) |
55 (6.1) |
59 (3.9) |
73 (3.1) |
59 (3.2) |
| Sweden |
55 (3.4) |
64 (3.8) |
65 (4.6) |
72 (4.1) |
59 (4.3) |
| Switzerland |
31 (4.2) |
58 (5.0) |
73 (3.4) |
68 (4.5) |
53 (4.4) |
| New Zealand |
67 (3.1) |
56 (3.6) |
68 (2.8) |
51 (3.4) |
33 (2.8) |
| Czech Republic
|
44 (4.1) |
54 (5.8) |
70 (4.3) |
66 (6.6) |
54 (5.9) |
| Norway |
49 (3.1) |
56 (3.8) |
60 (4.0) |
53 (4.1) |
46 (4.7) |
| Cyprus |
41 (4.4) |
46 (5.2) |
53 (3.7) |
58 (3.7) |
46 (4.7) |
| Iran, Islamic Rep. |
26 (6.5) |
20 (5.2) |
62 (4.1) |
56 (8.6) |
63 (8.9) |
| Spain |
33 (3.3) |
33 (4.0) |
58 (3.9) |
44 (4.4) |
48 (2.6) |
| Portugal |
41 (3.4) |
32 (3.8) |
44 (4.2) |
47 (4.6) |
34 (4.5) |
Rubber Band Task: Average Percentage
Score on Items
Countries not satisfying guidelines for sample participation rates
| Country |
Average Percentage Scores on
Items |
Item 2
Graph Results |
Item 3
Calculate Increase |
Item 4
Describe Trend
|
Item 5
Predict Length |
Item 6
Explain Prediction |
| 2 points |
3 points |
2 points |
1 point |
2 points |
| Australia |
55 (3.1) |
49 (4.1) |
65 (5.1) |
57 (4.3) |
41 (4.1) |
| England |
76 (2.4) |
55 (3.3) |
84 (2.9) |
80 (3.1) |
68 (3.6) |
| Netherlands |
71 (2.9) |
62 (3.5) |
63 (4.0) |
53 (5.8) |
61 (3.8) |
| United States |
54 (3.6) |
45 (4.1) |
68 (3.2) |
59 (4.0) |
41 (3.1) |
Rubber Band Task: Average Percentage
Score on Items
Countries not meeting age/grade specifications
| Country |
Average Percentage Scores on
Items |
Item 2
Graph Results |
Item 3
Calculate Increase |
Item 4
Describe Trend
|
Item 5
Predict Length |
Item 6
Explain Prediction |
| 2 points |
3 points |
2 points |
1 point |
2 points |
| Columbia |
14 (3.0) |
17 (3.9) |
55 (5.4) |
28 (4.3) |
39 (3.9) |
| Romania |
39 (4.2) |
26 (5.4) |
47 (3.0) |
30 (4.8) |
25 (3.6) |
| Slovenia |
54 (3.6) |
35 (4.1) |
57 (3.6) |
65 (5.1) |
47 (3.8) |
Rubber Band Task: Average Percentage
Score on Items
Countries not satisfying guidelines for sample participation rates
| Country |
Average Percentage Scores on
Items |
Item 2
Graphing Results |
Item 3
Calculate Increase |
Item 4
Describe Trend
|
Item 5
Predict Length |
Item 6
Explain Prediction |
| 2 points |
3 points |
2 points |
1 point |
2 points |
| International Average |
50 (0.8) |
47 (1.0) |
64 (0.9) |
59 (1.1) |
49 (1.0) |
Notes: None |
