# Level 2 Aggregated

The *mart_taskforce.level2_aggregated* mart aggregates data about a student’s performance and activities in a course on a weekly basis relative to average course and peer behaviors. This table exists alongside *mart_taskforce.level2_course_weekly_distribution_summary*

**BQ Prod Dataset Locations**

**BQ Prod Dataset Locations**

mart_taskforce

## Interactive Mart Dependency Diagram

The following visualization shows the construction of this data mart defined in the UDP marts repository. More information on the repository and diagram can be found on this marts page.

## Schema

**mart/taskforce/level2_aggregated**

**mart/taskforce/level2_aggregated**

Field Name | ||
---|---|---|

udp_person_id | INTEGER | The UDP ID of the student. |

lms_person_id | STRING | The LMS ID of the student. |

udp_course_offering_id | INTEGER | The UDP ID of the course offering. |

lms_course_offering_id | STRING | The LMS ID of the course offering. |

week_in_term | INTEGER | The week of the academic term. |

week_start_date | DATE | The start date of the week of the academic term. |

week_end_date | DATE | The end date of the week of the academic term. |

num_tiny_submissions_z | FLOAT | Z-score for the number of submissions classified as ‘tiny’, or making up a tiny percentage of the student’s final grade. |

num_small_submissions_z | FLOAT | Z-score for the number of submissions classified as ‘small’, or making up a small percentage of the student’s final grade. |

num_medium_submissions_z | FLOAT | Z-score for the number of submissions classified as ‘medium’, or making up a medium percentage of the student’s final grade. |

num_large_submissions_z | FLOAT | Z-score for the number of submissions classified as ‘large’, or making up a large percentage of the student’s final grade. |

num_major_submissions_z | FLOAT | Z-score for the number of submissions classified as ‘major’, or making up a major percentage of the student’s final grade. |

num_unweighted_submissions_z | FLOAT | Z-score for the number of unweighted submissions. |

num_weighted_submissions_z | FLOAT | Z-score for the number of weighted submissions. |

num_submissions_without_due_date_z | FLOAT | Z-score for the number of submissions without due dates. |

num_submissions_with_due_date_z | FLOAT | Z-score for the number of submissions with due dates. |

num_submissions_z | FLOAT | Z-score for the total number of submissions. |

num_tiny_assignments_z | FLOAT | Z-score for the number of assignments classified as ‘tiny’, or making up a tiny percentage of the student’s final grade. |

num_small_assignments_z | FLOAT | Z-score for the number of assignments classified as ‘small’, or making up a small percentage of the student’s final grade. |

num_medium_assignments_z | FLOAT | Z-score for the number of assignments classified as ‘medium’, or making up a medium percentage of the student’s final grade. |

num_large_assignments_z | FLOAT | Z-score for the number of assignments classified as ‘large’, or making up a large percentage of the student’s final grade. |

num_major_assignments_z | FLOAT | Z-score for the number of assignments classified as ‘major’, or making up a major percentage of the student’s final grade. |

num_unweighted_assignments_z | FLOAT | Z-score for the number of unweighted assignments. |

num_weighted_assignments_z | FLOAT | Z-score for the number of weighted assignments. |

num_assignments_without_due_date_z | FLOAT | Z-score for the number of assignments without due dates. |

num_assignments_with_due_date_z | FLOAT | Z-score for the number of assignments with due dates. |

num_assignments_z | FLOAT | Z-score for the total number of assignments. |

num_tiny_missing_submissions_z | FLOAT | Z-score for the number of missing submissions classified as ‘tiny’, or making up a tiny percentage of the student’s final grade. |

num_small_missing_submissions_z | FLOAT | Z-score for the number of missing submissions classified as ‘small’, or making up a small percentage of the student’s final grade. |

num_medium_missing_submissions_z | FLOAT | Z-score for the number of missing submissions classified as ‘medium’, or making up a medium percentage of the student’s final grade. |

num_large_missing_submissions_z | FLOAT | Z-score for the number of missing submissions classified as ‘large’, or making up a large percentage of the student’s final grade. |

num_major_missing_submissions_z | FLOAT | Z-score for the number of missing submissions classified as ‘major’, or making up a major percentage of the student’s final grade. |

num_unweighted_missing_submissions_z | FLOAT | Z-score for the number of unweighted missing submissions. |

num_weighted_missing_submissions_z | FLOAT | Z-score for the number of weighted missing submissions. |

num_missing_submissions_z | FLOAT | Z-score for the total number of missing submissions. |

num_tiny_late_submissions_z | FLOAT | Z-score for the number of late submissions classified as ‘tiny’, or making up a tiny percentage of the student’s final grade. |

num_small_late_submissions_z | FLOAT | Z-score for the number of late submissions classified as ‘small’, or making up a small percentage of the student’s final grade. |

num_medium_late_submissions_z | FLOAT | Z-score for the number of late submissions classified as ‘medium’, or making up a medium percentage of the student’s final grade. |

num_large_late_submissions_z | FLOAT | Z-score for the number of late submissions classified as ‘large’, or making up a large percentage of the student’s final grade. |

num_major_late_submissions_z | FLOAT | Z-score for the number of late submissions classified as ‘major’, or making up a major percentage of the student’s final grade. |

num_unweighted_late_submissions_z | FLOAT | Z-score for the number of unweighted late submissions. |

num_weighted_late_submissions_z | FLOAT | Z-score for the number of weighted late submissions. |

num_late_submissions_z | FLOAT | Z-score for the total number of late submissions. |

avg_time_buffer_hrs_tiny_z | FLOAT | Z-score for the average submission time buffer in hours for submissions classified as ‘tiny’, or making up a tiny percentage of the student’s final grade. |

avg_time_buffer_hrs_small_z | FLOAT | Z-score for the average submission time buffer in hours for submissions classified as ‘small’, or making up a small percentage of the student’s final grade. |

avg_time_buffer_hrs_medium_z | FLOAT | Z-score for the average submission time buffer in hours for submissions classified as ‘medium’, or making up a medium percentage of the student’s final grade. |

avg_time_buffer_hrs_large_z | FLOAT | Z-score for the average submission time buffer in hours for submissions classified as ‘large’, or making up a large percentage of the student’s final grade. |

avg_time_buffer_hrs_major_z | FLOAT | Z-score for the average submission time buffer in hours for submissions classified as ‘major’, or making up a major percentage of the student’s final grade. |

avg_time_buffer_hrs_unweighted_z | FLOAT | Z-score for the average submission time buffer in hours for unweighted submissions. |

avg_time_buffer_hrs_weighted_z | FLOAT | Z-score for the average submission time buffer in hours for weighted submissions. |

avg_time_buffer_hrs_z | FLOAT | Z-score for the average submission time buffer in hours for all submissions. |

avg_published_score_pct_tiny_z | FLOAT | Z-score for the average published score percentage for submissions classified as ‘tiny’, or making up a tiny percentage of the student’s final grade. |

avg_published_score_pct_small_z | FLOAT | Z-score for the average published score percentage for submissions classified as ‘small’, or making up a small percentage of the student’s final grade. |

avg_published_score_pct_medium_z | FLOAT | Z-score for the average published score percentage for submissions classified as ‘medium’, or making up a medium percentage of the student’s final grade. |

avg_published_score_pct_large_z | FLOAT | Z-score for the average published score percentage for submissions classified as ‘large’, or making up a large percentage of the student’s final grade. |

avg_published_score_pct_major_z | FLOAT | Z-score for the average published score percentage for submissions classified as ‘major’, or making up a major percentage of the student’s final grade. |

avg_score_pct_unweighted_z | FLOAT | Z-score for the average score percentage for unweighted submissions. |

avg_published_score_pct_weighted_z | FLOAT | Z-score for the average published score percentage for weighted submissions. |

avg_published_score_pct_without_due_date_z | FLOAT | Z-score for the average published score percentage for submissions without due dates. |

avg_published_score_pct_with_due_date_z | FLOAT | Z-score for the average published score percentage for submissions with due dates |

avg_published_score_z | FLOAT | Z-score for the average published score percentage for all submissions. |

discussion_entry_count_z | FLOAT | Z-score for the number of discussion entries posted by the student. |

discussion_post_count_z | FLOAT | Z-score for the number of discussion posts posted by the student. |

discussion_reply_count_z | FLOAT | Z-score for the number of discussion replies posted by the student. |

discussion_count_z | FLOAT | Z-score for the total number of discussions interacted with by the student. |

assignment_discussion_count_z | FLOAT | Z-score for the total number of discussions associated with an assignment interacted with by the student. |

threaded_discussion_count_z | FLOAT | Z-score for the total number of threaded discussions interacted with by the student. |

side_comment_discussion_count_z | FLOAT | Z-score for the total number of side comment discussions interacted with by the student. |

total_discussion_count_z | FLOAT | Z-score for the total number of discussions available in the course offering. |

total_assignment_discussion_count_z | FLOAT | Z-score for the total number of discussions associated with assignments available in the course offering. |

total_threaded_discussion_count_z | FLOAT | Z-score for the total number of threaded discussions available in the course offering. |

total_side_comment_discussion_count_z | FLOAT | Z-score for the total number of side comment discussions available in the course offering. |

avg_discussion_entry_length_z | FLOAT | Z-score for the average length of the student’s discussion entries. |

avg_discussion_post_length_z | FLOAT | Z-score for the average length of the student’s discussion posts. |

avg_discussion_reply_length_z | FLOAT | Z-score for the average length of the student’s discussion replies. |

view_days_z | FLOAT | Z-score for the number of view days in the LMS. |

num_sessions_10min_z | FLOAT | Z-score for the number of sessions in the LMS, with a 10 minute cutoff when calculating sessions. |

total_time_seconds_10min_z | FLOAT | Z-score for the total time spent in the LMS in seconds, with a 10 minute cutoff when calculating sessions. |

total_actions_10min_z | FLOAT | Z-score for the total number of actions in the LMS, with a 10 minute cutoff when calculating sessions. |

avg_time_seconds_10min_z | FLOAT | Z-score for the average amount of time spent in the LMS in seconds, with a 10 minute cutoff when calculating sessions. |

avg_actions_10min_z | FLOAT | Z-score for the average number of actions in the LMS, with a 10 minute cutoff when calculating sessions. |

num_sessions_20min_z | FLOAT | Z-score for the number of sessions in the LMS, with a 20 minute cutoff when calculating sessions. |

total_time_seconds_20min_z | FLOAT | Z-score for the total time spent in the LMS in seconds, with a 20 minute cutoff when calculating sessions. |

total_actions_20min_z | FLOAT | Z-score for the total number of actions in the LMS, with a 20 minute cutoff when calculating sessions. |

avg_time_seconds_20min_z | FLOAT | Z-score for the average amount of time spent in the LMS in seconds, with a 20 minute time cutoff when calculating sessions. |

avg_actions_20min_z | FLOAT | Z-score for the average number of actions in the LMS, with a 20 minute cutoff when calculating sessions. |

num_sessions_30min_z | FLOAT | Z-score for the number of sessions in the LMS, with a 30 minute cutoff when calculating sessions. |

total_time_seconds_30min_z | FLOAT | Z-score for the total time spent in the LMS in seconds, with a 30 minute cutoff when calculating sessions. |

total_actions_30min_z | FLOAT | Z-score for the total number of actions in the LMS, with a 30 minute cutoff when calculating sessions. |

avg_time_seconds_30min_z | FLOAT | Z-score for the average amount of time spent in the LMS in seconds, with a 30 minute cutoff when calculating sessions. |

avg_actions_30min_z | FLOAT | Z-score for the average number of actions in the LMS, with a 30 minute cutoff when calculating sessions. |

num_tool_launches_z | FLOAT | Z-score for the total number of LTI tool launches. |

num_tools_launched_z | FLOAT | Z-score for the total number of LTI tools launched. |

file_views_z | FLOAT | Z-score for the number of file views. |

num_files_viewed_z | FLOAT | Z-score for the number of files viewed. |

course_tools_launched | ARRAY<STRING> | Array of tool names launched by the person in the course for the week |

course_tools_not_launched | ARRAY<STRING> | Array of tool names not launched by the person in the course for the week |

course_files_viewed | ARRAY<INTEGER> | Array of file IDs accessed by the person in the course for the week |

course_files_not_viewed | ARRAY<INTEGER> | Array of file IDs not accessed by the person in the course for the week |

## Field Structure and Subcategories

This level 2 table has many fields, so we’ve grouped them together in the following subcategories

Assignments

Submissions

Assignments

Missing Assignments

Late Submissions

Submission Time Buffer

Published Scores

Discussions

Discussion Threads

Discussion Entries

Learning Environment Activity

View days

Sessions

Tool Launches

File Views

#### Dependencies

The only dependency for this mart is the *mart_taskforce*.*level1_aggregated*. All calculations and fields are based on that mart, and there are no direct dependencies to the UDP itself. As long as the *mart_taskforce.level1_aggregated* is successfully created, this mart can also be created.

#### Assignment Weight Groupings

Many fields have names that include *tiny*, *small*, *medium*, *large*, and *major*. These classifications are based on the *group_weight* field in the ‘learner_activity_group’ entity. The cases are as follows:

If the

*group_weight*is null or equal to 0%, the submission is ‘unweighted’.If the

*group_weight*is less than or equal to 2%, the submission is ‘tiny’.If the

*group_weight*is greater than 2% and less than or equal to 5%, the submission is ‘small’.If the

*group_weight*is greater than 5% and less than or equal to 10%, the submission is ‘medium’.If the

*group_weight*is greater than 10% and less than or equal to 25%, the submission is ‘large’.If the

*group_weight*is greater than 25%, the submission is ‘major’.If the

*group_weight*is not null and greater than 0%, the submission is 'weighted'.

These assignment weight groupings are consistent with the groupings for the Level 1 mart.

#### Z-Score Fields

The majority of the schema for *mart_taskforce.level2_aggregated* are z-score fields based on the distribution of corresponding fields per-course, per-week in *mart_taskforce.level1_aggregated*. The corresponding table *mart_taskforce.level2_course_weekly_distribution_summary* surfaces the averages and standard deviations (per-course, per-week) needed to calculate the z-scores for this table. We use the standard normalization formula to compute the z-scores.

### Assignments

#### Number of Submissions

**Fields**

num_tiny_submissions_z

num_small_submissions_z

num_medium_submissions_z

num_large_submissions_z

num_major_submissions_z

num_unweighted_submissions_z

num_weighted_submissions_z

num_submissions_without_due_date_z

num_submissions_with_due_date_z

num_submissions_z

**Description**

These fields present the Z-scores for the number of submissions by a student in a course for each week in the term. More detailed descriptions of the original submission fields exist in the documentation for *mart_taskforce.level1_aggregated**.*

#### Number of Assignments

**Fields**

num_tiny_assignments_z

num_small_assignments_z

num_medium_assignments_z

num_large_assignments_z

num_major_assignments_z

num_unweighted_assignments_z

num_weighted_assignments_z

num_assignments_z_without_due_date

num_assignments_z_with_due_date

num_assignments_z

**Description**

These fields present Z-scores for the number of assignments for a student in a course for each week in the term. The more detailed descriptions of the original assignment fields can be found in the documentation for *mart_taskforce.level1_aggregated**.*

#### Number of Missing Submissions

**Fields**

num_tiny_missing_submissions_z

num_small_missing_submissions_z

num_medium_missing_submissions_z

num_large_missing_submissions_z

num_major_missing_submissions_z

num_unweighted_missing_submissions_z

num_weighted_missing_submissions_z

num_missing_submissions_z

**Description**

These fields present Z-scores for the number of missing student submissions in a course for each week in the term. The definitions of the original missing submissions fields exist in the documentation for *mart_taskforce.level1_aggregated**.*

#### Number of Late Submissions

**Fields**

num_tiny_late_submissions_z

num_small_late_submissions_z

num_medium_late_submissions_z

num_large_late_submissions_z

num_major_late_submissions_z

num_unweighted_late_submissions_z

num_weighted_late_submissions_z

num_late_submissions_z

**Description**

These fields present the Z-scores for the number of late submissions by a student in a course for each week in the term. The definitions of the original late submissions fields exist in the documentation for *mart_taskforce.level1_aggregated**.*

#### Average Time Buffer in Hours

**Fields**

avg_time_buffer_hrs_tiny_z

avg_time_buffer_hrs_small_z

avg_time_buffer_hrs_medium_z

avg_time_buffer_hrs_large_z

avg_time_buffer_hrs_major_z

avg_time_buffer_hrs_unweighted_z

avg_time_buffer_hrs_weighted_z

avg_time_buffer_hrs_z

**Description**

These fields present the Z-scores for the average time buffer in hours for submissions by a student in a course for each week in the term. The definitions of the original time buffer fields exist in the documentation for *mart_taskforce.level1_aggregated**.*

#### Average Published Score Percentage

**Fields**

avg_published_score_pct_tiny_z

avg_published_score_pct_small_z

avg_published_score_pct_medium_z

avg_published_score_pct_large_z

avg_published_score_pct_major_z

avg_score_pct_unweighted_z

avg_published_score_pct_weighted_z

avg_published_score_pct_without_due_date_z

avg_published_score_pct_with_due_date_z

avg_published_score_z

**Description**

These fields show the Z-scores for the average published score percentage of submissions by a student in a course for each week in the term. The description of the average published score fields exist in the documentation for *mart_taskforce.level1_aggregated.*

### Discussions

#### Discussion Entry Counts

**Fields**

discussion_entry_count _z

discussion_post_count_z

discussion_reply_count_z

**Description**

These fields present the Z-scores for the number of discussion entries posted by a student in a course for each week in the term. The definitions of the original discussion entry count fields exist in the documentation for *mart_taskforce.level1_aggregated.*

#### Discussion Counts

**Fields**

discussion_count_z

assignment_discussion_count_z

threaded_discussion_count_z

side_comment_discussion_count_z

**Description**

These fields present the Z-scores for the number of discussions a student has interacted with in a course for each week in the term. The discussion count fields used to compute these Z-scores are defined in the documentation for *mart_taskforce.level1_aggregated.*

#### Total Discussion Counts

**Fields**

total_discussion_count_z

total_assignment_discussion_count_z

total_threaded_discussion_count_z

total_side_comment_discussion_count_z

**Description**

These fields present the Z-scores for the total number of discussions in a course for a given week in the term. The definitions of the original total discussion count fields exist in the documentation for *mart_taskforce.level1_aggregated.*

#### Average Discussion Entry Length

**Fields**

avg_discussion_entry_length_z

avg_discussion_post_length_z

avg_discussion_reply_length_z

**Description**

These fields present the Z-scores for the average length of the discussion entry messages for a student in a course for a given week in the term. More detailed descriptions of the average discussion entry lengths can be found in the documentation for *mart_taskforce.level1_aggregated.*

### Learning Environment Activity

#### View Days

**Fields**

view_days

**Description**

The *view_days* field shows the Z-score for the number of days a student viewed the learning environment for a course in a given week. The definition of the view days field exist in the documentation for *mart_taskforce.level1_aggregated.*

#### Sessions with 10, 20, and 30 Minute Cutoffs

**Fields**

num_sessions_10min_z

total_time_seconds_10min_z

total_actions_10min_z

avg_time_seconds_10min_z

avg_actions_10min_z

num_sessions_20min_z

total_time_seconds_20min_z

total_actions_20min_z

avg_time_seconds_20min_z

avg_actions_20min_z

num_sessions_30min_z

total_time_seconds_30min_z

total_actions_30min_z

avg_time_seconds_30min_z

avg_actions_30min_z

**Description**

For this mart, we define sessions using three different time cutoffs: 10 minutes, 20 minutes, and 30 minutes. We define the time spent in a session by adding up the duration of events in the session. These fields present the Z-scores for the number of sessions, total time spent, total number of actions, average time spent, and average number of actions for all three time cutoffs for a student in a course for a given week in the term. The definitions of the base session, time, and action fields exist in the documentation for *mart_taskforce.level1_aggregated.*

Please visit our separate interaction session mart documentation page here for a visual example and more information about interaction sessions too.

#### Tool Launches

**Fields**

num_tool_launches_z

num_tools_launched_z

course_tools_launched

course_tools_not_launched

**Description**

These fields focus on the LTI tools launched by a student in the learning environment of a course for each week in the term. More detailed definitions of LTI launches exist in the documentation for *mart_taskforce.level1_aggregated.*

The course_tools_launched and course_tools_not_launched are unique to this table. Both of these fields are of type ARRAY<STRING>. The course_tools_launched array field is a concatenated list of all launch app names seen for the course, week pair for a student. The course_tools_not_launched array field is inferred based on all the launch app names launched for the course for that week across all students. The results in the course_tools_not_launched field are the launch app names that at least one other student in the class launched but the student in scope for the row did not launch.

#### File Views

**Fields**

file_views_z

num_files_viewed_z

course_files_viewed

course_files_not_viewed

**Description**

These fields focus on the files viewed by a student in the learning environment of a course for each week in the term. More detailed definitions of files and file views exist in the documentation for *mart_taskforce.level1_aggregated.*

The course_files_viewed and course_files_not_viewed are unique to this table. Both of these fields are of type ARRAY<INTEGER>. The course_files_launched array field is a concatenated list of all file IDs seen for the course and week pair for a student. The course_files_not_viewed array field is inferred based on all the file IDs viewed for the course and week across all students. The results in the course_files_not_viewed field are the file IDs that at least one other student in the class viewed but the student in scope for the row did not view.

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