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Add scales to framework. Change calculations to first group and then

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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.
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rebuilt 2022-02-16 20:40:32 +01:00
parent 1ca88bf6d1
commit d4df7cbc06
44 changed files with 1053 additions and 856 deletions
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54
app/presenters/scale.rb
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@ -1,54 +0,0 @@
class Scale
def initialize(watch_low_benchmark:, growth_low_benchmark:, approval_low_benchmark:, ideal_low_benchmark:)
@watch_low_benchmark = watch_low_benchmark
@growth_low_benchmark = growth_low_benchmark
@approval_low_benchmark = approval_low_benchmark
@ideal_low_benchmark = ideal_low_benchmark
@warning_low_benchmark = 1
end
Zone = Struct.new(:low_benchmark, :high_benchmark, :type)
def warning_zone
Zone.new(1, @watch_low_benchmark, :warning)
end
def watch_zone
Zone.new(@watch_low_benchmark, @growth_low_benchmark, :watch)
end
def growth_zone
Zone.new(@growth_low_benchmark, @approval_low_benchmark, :growth)
end
def approval_zone
Zone.new(@approval_low_benchmark, @ideal_low_benchmark, :approval)
end
def ideal_zone
Zone.new(@ideal_low_benchmark, 5.0, :ideal)
end
def insufficient_data
Zone.new(0, @warning_low_benchmark, :insufficient_data)
end
def zone_for_score(score)
case score
when nil
insufficient_data
when ideal_zone.low_benchmark..ideal_zone.high_benchmark
ideal_zone
when approval_zone.low_benchmark..approval_zone.high_benchmark
approval_zone
when growth_zone.low_benchmark..growth_zone.high_benchmark
growth_zone
when watch_zone.low_benchmark..watch_zone.high_benchmark
watch_zone
when 1..warning_zone.high_benchmark
warning_zone
else
insufficient_data
end
end
end