Using Elements as Filters
Up to two filters can be defined at template creation time.
Filters are element -like template building blocks that are used to filter data based on the values stored during walk-throughs.
Unlike elements, filters are not the object of statistics in the reports. They add flexibility to the reports in that they allow the reports to target walk-throughs that selected certain values. For example, if one of the filters represents the grade of an observed class, and grades 4 through 6 have been observed, you may select for your report:
- Grade 4
- Grade 5
- Grade 6
- Grades 4 and 5
- Grades 4 and 6
- Grades 5 and 6
- Grades 4, 5 and 6
Now, assume a Grade filter does not exist since the creator of the template hasn't considered the need for this filter. However, one of the elements is a drop-down list that represents the grade. You may use this drop-down list element to filter the walk-throughs exactly as you would do using the Grade filter above.
As you probably know, the increased filtering power inherent in being able to define up to to two filters at template creation time consists in the ability of selecting values for two filters, instead of one, when reports are generated.
In the above image, which shows a Grade as well as a Subject filter, the user may select, for example, a report that is based on grades 4 and 6 and on Math, English and Physical Education subjects of observed classes. Using the two filters to make the report be based on these grades and subjects alone is a possible consequence of the fact walk-throughs performed on grades other than 4 and 6 and on subjects other than Math, English and Physical Education are of no interest to the person who generates the report.
The recently introduced possibility of using drop-down list or checkbox elements as filters makes filtering capabilities even greater. Whether in conjunction with with two filters, with one filter, or by itself, elements used as filters make filtering more flexible as they are not restricted by the need to be defined as filters in the template. Indeed, any checkbox or drop-down list can serve as a filter.
In the following image, Teacher Performance Level, a drop-down list element used as a filter, enhances the filtering capacity of two filters proper, Grade Level and Classroom Type:
The users selected grades 4 - 6 and may further filter the walk-throughs using the Classroom Type filter and the Teacher Performance Level drop-down list.