to survey table. We no longer check or keep track of the survey type.
Instead we look in the database to see if a survey item has at least 10
responses. If it does, that survey item was presented to the respondent
and we count it, and all responses when calculating the response rate.
Remove response rate timestamp from caching logic because we no longer
add the response rate to the database. All response rates are calculated
on the fly
Update three_b_two scraper to use teacher only numbers
swap over to using https://profiles.doe.mass.edu/statereport/gradesubjectstaffing.aspx as the source of staffing information
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.
TODO- in the future, consider putting this in a credential. We're not able to change the production credentials file currently, but we should change it in the future when we're able
