use of org.olat.ims.qti.statistics.model.StatisticsItem in project OpenOLAT by OpenOLAT.
the class QTI21StatisticsManagerImpl method getAssessmentItemStatistics.
@Override
public StatisticsItem getAssessmentItemStatistics(String itemIdent, double maxScore, QTI21StatisticSearchParams searchParams) {
StringBuilder sb = new StringBuilder();
sb.append("select isession.score, isession.manualScore, count(isession.key), avg(isession.duration) from qtiassessmentitemsession isession ").append(" inner join isession.assessmentTestSession asession");
decorateRSet(sb, searchParams, true);
sb.append(" and isession.assessmentItemIdentifier=:itemIdent and isession.duration > 0").append(" group by isession.score, isession.manualScore");
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) {
BigDecimal score = (BigDecimal) result[0];
BigDecimal manualScore = (BigDecimal) result[1];
if (score == null) {
score = manualScore;
} else if (manualScore != null) {
score = score.add(manualScore);
}
long numOfResults = ((Number) result[2]).longValue();
double averageDuration = ((Number) result[3]).doubleValue();
// average
double dScore = score == null ? 0.0d : score.doubleValue();
totalScore += (dScore * numOfResults);
totalResults += numOfResults;
if ((maxScore - dScore) < 0.0001) {
numOfCorrectAnswers += numOfResults;
} else {
numOfIncorrectAnswers += numOfResults;
}
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;
}
use of org.olat.ims.qti.statistics.model.StatisticsItem in project OpenOLAT by OpenOLAT.
the class QTI12ItemStatisticsController method initEssay.
protected void initEssay() {
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);
mainVC.contextPut("solution", item.getQuestion().getSolutionText());
int numOfResults = itemStats.getNumOfResults();
if (!survey) {
mainVC.contextPut("maxScore", maxScore);
}
mainVC.contextPut("averageDuration", duration(itemStats.getAverageDuration()));
List<String> answers = qtiStatisticsManager.getAnswers(item.getIdent(), searchParams);
List<String> cleanedAnswers = new ArrayList<>();
for (String string : answers) {
String strippedAnswer = stripAnswerText(string);
if (strippedAnswer == null || strippedAnswer.length() == 0) {
numOfResults--;
} else {
cleanedAnswers.add(strippedAnswer);
}
}
mainVC.contextPut("numOfResults", Math.max(0, numOfResults));
mainVC.contextPut("studentAnswers", cleanedAnswers);
}
use of org.olat.ims.qti.statistics.model.StatisticsItem in project OpenOLAT by OpenOLAT.
the class QTI21AssessmentItemStatisticsController method updateData.
private void updateData(UserRequest ureq) {
StatisticsItem itemStats = initItemStatistics();
List<String> interactionIds = initInteractionControllers(ureq, itemStats);
mainVC.contextPut("interactionIds", interactionIds);
}
use of org.olat.ims.qti.statistics.model.StatisticsItem in project openolat by klemens.
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);
}
use of org.olat.ims.qti.statistics.model.StatisticsItem in project openolat by klemens.
the class QTIStatisticsManagerLargeTest method testItemStatistics_multipleChoice_1.
@Test
public void testItemStatistics_multipleChoice_1() {
QTIItemObject itemObject = itemObjects.get(1);
double maxValue = Double.parseDouble(itemObject.getItemMaxValue());
QTIStatisticSearchParams searchParams = new QTIStatisticSearchParams(olatResource, olatResourceDetail);
StatisticsItem stats = qtim.getItemStatistics(itemObject.getItemIdent(), maxValue, searchParams);
double difficulty = rightAnswersQ2 / (double) numberOfParticipants;
Assert.assertEquals(difficulty, stats.getDifficulty(), 0.1);
Assert.assertEquals(scoreQ2, stats.getAverageScore(), 0.1);
Assert.assertEquals(wrongAnswersQ2, stats.getNumOfIncorrectAnswers());
Assert.assertEquals(numberOfParticipants - wrongAnswersQ2, stats.getNumOfCorrectAnswers());
}
Aggregations