Examples with StatisticsItem org.olat.ims.qti.statistics.model.StatisticsItem used on opensource projects

Example 1 with StatisticsItem

use of org.olat.ims.qti.statistics.model.StatisticsItem in project OpenOLAT by OpenOLAT.

the class QTIStatisticsManagerImpl method getItemStatistics.

@Override
public StatisticsItem getItemStatistics(String itemIdent, double maxScore, QTIStatisticSearchParams searchParams) {
    StringBuilder sb = new StringBuilder();
    sb.append("select res.score, count(res.key), avg(res.duration) from qtistatsresult res ").append(" inner join res.resultSet rset");
    decorateRSet(sb, searchParams);
    sb.append(" and res.itemIdent=:itemIdent and res.duration > 0 group by res.score");
    TypedQuery<Object[]> query = dbInstance.getCurrentEntityManager().createQuery(sb.toString(), Object[].class).setParameter("itemIdent", itemIdent);
    decorateRSetQuery(query, searchParams);
    List<Object[]> results = query.getResultList();
    if (results.isEmpty()) {
        return new StatisticsItem();
    }
    int totalResults = 0;
    double totalScore = 0.0;
    double totalDuration = 0.0;
    long numOfCorrectAnswers = 0;
    long numOfIncorrectAnswers = 0;
    for (Object[] result : results) {
        long numOfResults = ((Long) result[1]).longValue();
        // average
        double score = ((Float) result[0]).doubleValue();
        totalScore += (score * numOfResults);
        totalResults += numOfResults;
        if ((maxScore - score) < 0.0001) {
            numOfCorrectAnswers += numOfResults;
        } else {
            numOfIncorrectAnswers += numOfResults;
        }
        double averageDuration = ((Double) result[2]).doubleValue();
        totalDuration += (averageDuration * numOfResults);
    }
    double averageScore = totalScore / totalResults;
    // difficulty (p-value)
    double difficulty = numOfCorrectAnswers / (double) totalResults;
    double averageDuration = totalDuration / totalResults;
    StatisticsItem stats = new StatisticsItem();
    stats.setAverageDuration(Math.round(averageDuration));
    stats.setAverageScore(averageScore);
    stats.setNumOfResults(totalResults);
    stats.setDifficulty(difficulty);
    stats.setNumOfCorrectAnswers(numOfCorrectAnswers);
    stats.setNumOfIncorrectAnswers(numOfIncorrectAnswers);
    return stats;
}

Example 2 with StatisticsItem

use of org.olat.ims.qti.statistics.model.StatisticsItem in project OpenOLAT by OpenOLAT.

the class QTI12ItemStatisticsController method initItemStatistics.

protected StatisticsItem initItemStatistics() {
    boolean survey = QTIType.survey.equals(resourceResult.getType());
    double maxScore;
    if (survey) {
        maxScore = 1d;
    } else if (item.getQuestion().isSingleCorrect()) {
        maxScore = item.getQuestion().getSingleCorrectScore();
    } else {
        maxScore = item.getQuestion().getMaxValue();
    }
    StatisticsItem itemStats = qtiStatisticsManager.getItemStatistics(item.getIdent(), maxScore, searchParams);
    if (survey) {
        long notAnswered = numOfParticipants - itemStats.getNumOfResults();
        mainVC.contextPut("notAnswered", notAnswered);
    } else {
        long rightAnswers = itemStats.getNumOfCorrectAnswers();
        long wrongAnswers = itemStats.getNumOfIncorrectAnswers();
        long notAnswered = numOfParticipants - rightAnswers - wrongAnswers;
        mainVC.contextPut("maxScore", maxScore);
        mainVC.contextPut("rightAnswers", rightAnswers);
        mainVC.contextPut("wrongAnswers", wrongAnswers);
        if (item.getQuestion().getType() != Question.TYPE_FIB) {
            mainVC.contextPut("notAnswered", notAnswered);
        }
        mainVC.contextPut("itemDifficulty", formatTwo(itemStats.getDifficulty()));
        mainVC.contextPut("averageScore", formatTwo(itemStats.getAverageScore()));
    }
    mainVC.contextPut("averageDuration", duration(itemStats.getAverageDuration()));
    return itemStats;
}

Example 3 with StatisticsItem

use of org.olat.ims.qti.statistics.model.StatisticsItem in project OpenOLAT by OpenOLAT.

the class QTI21AssessmentItemStatisticsController method initItemStatistics.

protected StatisticsItem initItemStatistics() {
    boolean survey = QTIType.survey.equals(resourceResult.getType());
    double maxScore = 0.0d;
    Double maxScoreSettings = QtiNodesExtractor.extractMaxScore(item);
    if (maxScoreSettings != null) {
        maxScore = maxScoreSettings.doubleValue();
    }
    StatisticsItem itemStats = qtiStatisticsManager.getAssessmentItemStatistics(itemRef.getIdentifier().toString(), maxScore, searchParams);
    int numOfParticipants = resourceResult.getQTIStatisticAssessment().getNumOfParticipants();
    if (survey) {
        long notAnswered = numOfParticipants - itemStats.getNumOfResults();
        mainVC.contextPut("notAnswered", notAnswered);
    } else {
        long rightAnswers = itemStats.getNumOfCorrectAnswers();
        long wrongAnswers = itemStats.getNumOfIncorrectAnswers();
        long notAnswered = numOfParticipants - rightAnswers - wrongAnswers;
        mainVC.contextPut("maxScore", maxScore);
        mainVC.contextPut("rightAnswers", rightAnswers);
        mainVC.contextPut("wrongAnswers", wrongAnswers);
        mainVC.contextPut("notAnswered", notAnswered);
        mainVC.contextPut("itemDifficulty", formatTwo(itemStats.getDifficulty()));
        mainVC.contextPut("averageScore", formatTwo(itemStats.getAverageScore()));
        mainVC.contextPut("numOfParticipants", numOfParticipants);
    }
    mainVC.contextPut("averageDuration", duration(itemStats.getAverageDuration()));
    return itemStats;
}

Example 4 with StatisticsItem

use of org.olat.ims.qti.statistics.model.StatisticsItem in project OpenOLAT by OpenOLAT.

the class QTIStatisticsManagerLargeTest method testItemStatistics_singleChoice_0.

@Test
public void testItemStatistics_singleChoice_0() {
    QTIItemObject itemObject = itemObjects.get(0);
    double maxValue = Double.parseDouble(itemObject.getItemMaxValue());
    QTIStatisticSearchParams searchParams = new QTIStatisticSearchParams(olatResource, olatResourceDetail);
    StatisticsItem stats = qtim.getItemStatistics(itemObject.getItemIdent(), maxValue, searchParams);
    Assert.assertEquals(scoreQ1, stats.getAverageScore(), 0.1);
}

Example 5 with StatisticsItem

use of org.olat.ims.qti.statistics.model.StatisticsItem in project OpenOLAT by OpenOLAT.

the class QTIStatisticsManagerLargeTest method testItemStatistics_kprim_2.

@Test
public void testItemStatistics_kprim_2() {
    QTIItemObject itemObject = itemObjects.get(2);
    double maxValue = Double.parseDouble(itemObject.getItemMaxValue());
    QTIStatisticSearchParams searchParams = new QTIStatisticSearchParams(olatResource, olatResourceDetail);
    StatisticsItem stats = qtim.getItemStatistics(itemObject.getItemIdent(), maxValue, searchParams);
    float durationQ3InSec = durationQ3;
    Assert.assertEquals(durationQ3InSec, stats.getAverageDuration(), 1.0f);
}