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Reading the dots

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Last updated 09 September 2013 10:06 by NZTecAdmin

This section discusses how to read and interpret the scatter plots of learners' answers generated by the Assessment Tool for Individual Learner Reports.

Images of the scatter plot portion of individual reports from an adaptive general numeracy assessment and a reading assessment are shown below.

You may also download the full sample reports.

Reading individual learner report (PDF, 1.16 MB)

Numeracy individual learner report (PDF, 320 KB)

The video below provides an interpretation of the scatter of dots for the two sample reports.

Reading the dots

Key points:

  • Black dots are questions answered correctly; white dots are incorrect answers.
  • The questions are ‘mapped’ to the Learning Progression steps (indicated by the number of fronds on the koru) so the vertical position of the dots indicates the question’s relative level of difficulty.
  • An adaptive assessment hones in on the learner’s achievement level by generating each question based on the result of the previous one. If a learner answers a question correctly, the next question is likely to be at a level at or above the correctly answered question. Conversely, the Tool will likely decrease the level slightly for a question following an incorrect answer.
  • It’s important to explain the adaptive nature of the assessments to your learners before they do an assessment. They need to know that it will likely feel like the questions are getting harder, and that they are not expected to know all of the answers. The purpose of the assessment is to find out what they do and don’t know. View the videos about briefing learners to take an assessment for more information on preparing your learners to sit assessments.
  • The scatter plot doesn’t display the question numbers sequentially from left to right. They are placed on the scatter plot according to the progression the question assessed.
  • The general numeracy assessment assesses all three number strategy progressions (additive, multiplicative, and proportional reasoning strategies), the measurement progression, and the three number knowledge progressions (number sequence, place value, and number facts). The scatter plot indicates whether the question assesses strategies or knowledge, but doesn’t have enough detail to tell which strategy or knowledge progression a question relates to. (The question detail section of the report provides these details.)


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