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6th-8th Grade Performance Task
Contributed by: The RAND Institute (RAND)
1993-94
Example 3 from 1993 (6th Grade) Format:
Example 3A: Conflict between inside and outside
labels, but all 4 boxes form a valid cross-classification.
Example 3A: SCORING
This student has used the same group labels for rows
and columns. These labels conflict with what is in the box labels.
Becuase the box labels form a valid cross-classification, we may
awayrd points for materials.
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1) Column groups
FIRST, are both groups levels of the same variable?
- alive and not alive are levels of a variable
SECOND, is there corroborating evidence?
Step 1: Check property label.
- alive and not alive are not levels of
big
- box labels do not corroborate these groups
- materials do not corroborate these groups
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0 points |
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2) Column property
Do both column groups fit the property?
- alive and not alive are not levels of
big
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0 points |
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3) Row groups
FIRST, are both groups levels of the same variable?
- alive and not alive are not levels of
small
- box labels corroborate group labels
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0 points |
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4) Row property
- alive and not alive are not levels of
small
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0 points |
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5) Box labels
Do not correspond to outside row and column labels
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0 points |
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6) Materials
Does the material fit the box?
- We may award points for all 8 materials, based on the
internal cross-classification.
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8 points |
Example 3B: Conflict between inside and outside labels;
1 box label missing, incorrect, or incomplete.
Because Box 4 label is missing, we cannot award points for any
materials in that row or column. This student receives points for
materials in box 1: 3 points for fur, seaweed, and bone.
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