# Help: Statistics

## What are Statistics?

The **Statistics** module records and analyzes the performance of all tests you run in Evalis. It allows you to review your progress, identify areas for improvement, and consult historical results.

## General Information

When entering Statistics, you will see a general summary with:

**Totals:**

- **Tests completed**: Total number of completed tests

- **Average correct**: Average of correct answers per test

- **Average incorrect**: Average of incorrect answers per test

- **Average unanswered**: Average of unanswered questions per test

- **Average score**: Average score obtained

**Note**: Partial or incomplete tests are NOT counted. Only properly finished tests are included.

## Test History

**View Log:**

- Shows a list of all completed tests

- Sorted by date (most recent first)

- Each entry shows:

 - Test name

 - Date and time of completion

 - Score obtained

 - Number of correct/incorrect/unanswered

## Result Details

When clicking on a test in the history, you can see:

**Result summary:**

- Total score obtained

- Maximum possible score

- Success percentage

- Answer breakdown (correct, incorrect, unanswered)

**Question-by-question review:**

- Text of each question

- Your selected answer

- Correct answer

- Feedback for each answer

- Question explanation

- Score obtained on that question

- Multimedia resources (images and audios)

## Main Functions

**1. View General Statistics**

- View your averages and totals

- Identify trends in your learning

**2. View History (Log)**

- Complete list of completed tests

- Quick access to each result

**3. View Result Details**

- Complete analysis of a specific test

- Educational review of errors

**4. Delete All Statistics**

- Permanently deletes all records

- Does NOT affect tests or repositories

- **WARNING**: This action CANNOT be undone

## Educational Use

**Identify weaknesses:**

- Review repeatedly failed questions

- Detect patterns in errors

- Focus study on weak areas

**Progress tracking:**

- Compare results of similar tests over time

- Observe improvement in averages

- Measure the impact of your study

**Learning from errors:**

- Read feedback on incorrect answers

- Study question explanations

- Repeat tests until mastering the topic

## Privacy

**Local storage:**

- All statistics are saved on your device

- They are NOT shared or synced to the cloud

- Only you have access to your results

**Backup:**

- Statistics are NOT included when exporting repositories or tests

- If you uninstall the app, you will lose all statistics

- There is currently NO function to export statistics

**Deletion:**

- You can manually delete all statistics

- Uninstalling the app also deletes them

- Deleting a test does NOT delete its results in statistics

## What is recorded?

- Start and end date and time of the test

- Test name and configuration

- Selected answers for each question

- Score obtained

- Time spent (if available)

## What is NOT recorded?

- Partial attempts or abandoned before finishing

- Navigation during the test

- Answers changed before finishing

- Tests without answers

## Recommendations

**For students:**

- Check statistics after each study session

- Identify patterns in your errors

- Repeat tests until reaching 80%+ success

- Use feedback to study concepts

**For educators:**

- Analyze performance on different topics

- Identify questions that cause more errors

- Verify that scores are balanced

**For creators:**

- Use your own statistics to test tests

- Ensure feedback is useful

- Verify that difficulties are appropriate