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d4df7cbc06
average those groupings and the way up the framework. Likert scores for a survey_item are averaged. Then all the survey_items in a scale are averaged. Then student scales in a measure are averaged. And teacher scales in a measure are averaged. Then the average of those two calculations becomes the score for a measure. Then the measures in a subcategory are averaged.
55 lines
1.5 KiB
Ruby
55 lines
1.5 KiB
Ruby
class Zones
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def initialize(watch_low_benchmark:, growth_low_benchmark:, approval_low_benchmark:, ideal_low_benchmark:)
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@watch_low_benchmark = watch_low_benchmark
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@growth_low_benchmark = growth_low_benchmark
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@approval_low_benchmark = approval_low_benchmark
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@ideal_low_benchmark = ideal_low_benchmark
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@warning_low_benchmark = 1
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end
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Zone = Struct.new(:low_benchmark, :high_benchmark, :type)
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def warning_zone
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Zone.new(1, @watch_low_benchmark, :warning)
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end
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def watch_zone
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Zone.new(@watch_low_benchmark, @growth_low_benchmark, :watch)
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end
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def growth_zone
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Zone.new(@growth_low_benchmark, @approval_low_benchmark, :growth)
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end
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def approval_zone
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Zone.new(@approval_low_benchmark, @ideal_low_benchmark, :approval)
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end
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def ideal_zone
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Zone.new(@ideal_low_benchmark, 5.0, :ideal)
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end
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def insufficient_data
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Zone.new(0, @warning_low_benchmark, :insufficient_data)
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end
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def zone_for_score(score)
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return insufficient_data if score.nil?
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return insufficient_data if score.is_a?(Float) && score.nan?
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case score
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when ideal_zone.low_benchmark..ideal_zone.high_benchmark
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ideal_zone
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when approval_zone.low_benchmark..approval_zone.high_benchmark
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approval_zone
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when growth_zone.low_benchmark..growth_zone.high_benchmark
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growth_zone
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when watch_zone.low_benchmark..watch_zone.high_benchmark
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watch_zone
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when 1..warning_zone.high_benchmark
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warning_zone
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else
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insufficient_data
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end
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end
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end
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