Test Item Analysis

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Test Item Analysis
Andy Mangrum E-mail charlesm1_at_wcs.eduGrassland
Middle School Franklin, TNWilliamson County
Schools Grade Level 7 Standard 11
Motion Source The Pennsylvania System of School
Assessment Science Item and
Scoring Sampler (http//www.pde.stat
e.pa.us/a_and_t/lib/a_and_t/2007-2008Gr8ScienceIte
mSampler.pdf)
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Item Analysis Standardized Test Item Test Item
Type and Structure Embedded Concepts and
Skills Standards Alignment Connections to
Curriculum Framework Content Clarification Strand
Map Instructional Alignment Lesson Plan
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Standardized Test Item
Source The Pennsylvania System of School
Assessment Science Item and Scoring Sampler
2007-2008
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Note Standardized Test Item continues on the
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Standardized Test Item (cont.)
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Standardized Test Item (cont.)
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Test Item Type and Structure

• Type of test item
• Scenario Analysis
• Structure of item
• The question presents a simple star system by
  showing a diagram with a central sun and two
  elliptically orbiting planets. A data table is
  included giving the mass in kilograms of each of
  the three objects in the system.
• The test-taker is asked to explain individually
  how the sun and planet 2 affect the movement of
  planet 1.
• The second part is to identify which object has
  the most effect on movement of other objects in
  the system. The test-taker is asked to explain
  their answer.

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Embedded Concepts Process Skills

• Concepts and Big Ideas
• Gravity
• Mass
• Newtons Laws of Motion
• Process (Inquiry or problem solving) Skills
  
• Interpret a diagram
• Interpret a simple data table
• Webbs Knowledge Level
• Strategic thinking

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Connections to State Curriculum Framework
Standard 11 - Motion Conceptual
Strand Objects move in ways that can be
observed, described, predicted, and
measured. Guiding Questions What causes objects
to move differently under different
circumstances? Grade Level Expectation GLE
0707.11.4 Investigate how Newtons laws of motion
explain an objects movement. Checks for
Understanding Recognize how a net force impacts
an objects motion. State Performance
Indicators Identify and explain how Newtons
laws of motion relate to the movement of objects.
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Content Clarification
Click here to open aContent Clarification
onOrbital Motion
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Atlas of Science Literacy

Strand map from NSDL Science Literacy
Maps Topic Physical Science Sub-topic Gravity
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Atlas of Science Literacy(cont.)

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Note Standardized Test Item continues on the
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Atlas of Science Literacy(cont.)

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Instructional Alignment
Click here to openthe lesson plan on Orbital
Motion
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