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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.
13 lines
312 B
Ruby
13 lines
312 B
Ruby
class Subcategory < ActiveRecord::Base
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belongs_to :category
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has_many :measures
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def score(school:, academic_year:)
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scores = measures.includes([:survey_items]).map do |measure|
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measure.score(school:, academic_year:).average
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end
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scores = scores.reject(&:nil?)
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scores.average
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end
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end
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