Index: lams_central/conf/language/lams/ApplicationResources.properties
===================================================================
diff -u -r09376d9f1251acf8d8a1258b12ef87041ba5fdfc -rd3313eb898d654f090e6ea6c99b3232a65f759f2
--- lams_central/conf/language/lams/ApplicationResources.properties	(.../ApplicationResources.properties)	(revision 09376d9f1251acf8d8a1258b12ef87041ba5fdfc)
+++ lams_central/conf/language/lams/ApplicationResources.properties	(.../ApplicationResources.properties)	(revision d3313eb898d654f090e6ea6c99b3232a65f759f2)
@@ -988,9 +988,6 @@
 label.qb.collection.unshare = Unshare
 label.qb.collection.share = Share
 label.qb.collection.edit = Edit
-label.qb.collection.remove.questions = Remove questions
-label.qb.collection.remove.questions.tooltip = Remove all selected questions from the collection. If they are present only in this collection, they will be permanently removed. 
-label.qb.collection.remove.questions.fail = Some questions are only present in this collection, so they would be permanently removed.\\nIt is not possible as they are used in sequences.
 error.form.validation.error = You have 1 error in a form. It has been highlighted
 error.form.validation.errors = You have {0} errors in a form. They have been highlighted
 label.authoring.choice.add.multiple.choice = Add multiple choice
@@ -1114,3 +1111,7 @@
 label.code.style = Code style
 label.code.style.none = None
 authoring.fla.tool.groups.all = All
+label.qb.difficulty.index.tooltip = The difficulty index represents a percentage of the students responses that answered the question correctly. This metric takes a value between 0 and 1. High values indicate that the question is easy, while low values indicate that is difficult. Value 0.3 to 0.7 is considered good for this factor and outside this range requires improvement.
+label.qb.discrimination.index.tooltip = Discrimination index measures how well a question distinguishes between students with more knowledge or skill from those with less. Values close to +1 indicate that the question does a good job of discriminating between high performers and low performers. Value 0.2 to 1 is considered good for this factor, -0.2 to 0.2 is medium and below -0.2 requires improvement.
+label.qb.point.biserial.tooltip = Point-biserial measures the correlation between the scores on the entire exam and the scores on the single question (where 1 = correct answer and 0 = incorrect answer). A large correlation indicates that a question is measuring the same construct as the overall exam measures. Value 0.2 to 1 is considered good for this factor, -0.2 to 0.2 is medium and below -0.2 requires improvement.
+label.qb.stats.tooltip = Item analysis is a technique that analyses the student answers to evaluate the effectiveness of questions in an exam. Only students who have finished the activity are taken into consideration. There must be at least 2 students.
Index: lams_central/conf/language/lams/ApplicationResources_el_GR.properties
===================================================================
diff -u -re49f4ca2772f41c3e5dce498bc2d32a66b4f31ad -rd3313eb898d654f090e6ea6c99b3232a65f759f2
--- lams_central/conf/language/lams/ApplicationResources_el_GR.properties	(.../ApplicationResources_el_GR.properties)	(revision e49f4ca2772f41c3e5dce498bc2d32a66b4f31ad)
+++ lams_central/conf/language/lams/ApplicationResources_el_GR.properties	(.../ApplicationResources_el_GR.properties)	(revision d3313eb898d654f090e6ea6c99b3232a65f759f2)
@@ -1102,3 +1102,7 @@
 label.code.style = Στυλ κώδικα
 label.code.style.none = Κανένα
 authoring.fla.tool.groups.all = Ολα
+label.qb.difficulty.index.tooltip = Ο δείκτης δυσκολίας αντιπροσωπεύει ένα ποσοστό των απαντήσεων των εκπαιδευομένων που απάντησαν σωστά στην ερώτηση. Αυτή η μέτρηση παίρνει μια τιμή μεταξύ 0 και 1. Οι υψηλές τιμές δείχνουν ότι η ερώτηση είναι εύκολη, ενώ οι χαμηλές τιμές δείχνουν ότι είναι δύσκολη.
+label.qb.discrimination.index.tooltip = Ο δείκτης διάκρισης (discrimination) μετρά πόσο καλά μια ερώτηση διακρίνει μεταξύ εκπαιδευομένων με περισσότερες γνώσεις ή δεξιότητες από εκείνους με λιγότερους. Οι τιμές κοντά στο +1 δείχνουν ότι η ερώτηση κάνει καλή διάκριση μεταξύ υψηλών και χαμηλών επιδόσεων.
+label.qb.point.biserial.tooltip = Το σημείο-biserial μετρά τη συσχέτιση μεταξύ των βαθμολογιών σε ολόκληρη την εξέταση και των βαθμολογιών στην απλή ερώτηση (όπου 1 = σωστή απάντηση και 0 = λανθασμένη απάντηση). Μια μεγάλη συσχέτιση δείχνει ότι μια ερώτηση μετρά την ίδια δομή με τις συνολικές εξετάσεις.
+label.qb.stats.tooltip = Η ανάλυση στοιχείων είναι μια τεχνική που αναλύει τις απαντήσεις του εκπαιδευόμενου για να αξιολογήσει την αποτελεσματικότητα των ερωτήσεων σε μια εξέταση. Λαμβάνονται υπόψη μόνο οι εκπαιδευόμενοι που έχουν ολοκληρώσει τη δραστηριότητα. Πρέπει να υπάρχουν τουλάχιστον 2 εκπαιδευόμενοι.
Index: lams_central/conf/language/lams/ApplicationResources_en_AU.properties
===================================================================
diff -u -re49f4ca2772f41c3e5dce498bc2d32a66b4f31ad -rd3313eb898d654f090e6ea6c99b3232a65f759f2
--- lams_central/conf/language/lams/ApplicationResources_en_AU.properties	(.../ApplicationResources_en_AU.properties)	(revision e49f4ca2772f41c3e5dce498bc2d32a66b4f31ad)
+++ lams_central/conf/language/lams/ApplicationResources_en_AU.properties	(.../ApplicationResources_en_AU.properties)	(revision d3313eb898d654f090e6ea6c99b3232a65f759f2)
@@ -1102,3 +1102,7 @@
 label.code.style = Code style
 label.code.style.none = None
 authoring.fla.tool.groups.all = All
+label.qb.difficulty.index.tooltip = The difficulty index represents a percentage of the students responses that answered the question correctly. This metric takes a value between 0 and 1. High values indicate that the question is easy, while low values indicate that is difficult. Value 0.3 to 0.7 is considered good for this factor and outside this range requires improvement.
+label.qb.discrimination.index.tooltip = Discrimination index measures how well a question distinguishes between students with more knowledge or skill from those with less. Values close to +1 indicate that the question does a good job of discriminating between high performers and low performers. Value 0.2 to 1 is considered good for this factor, -0.2 to 0.2 is medium and below -0.2 requires improvement.
+label.qb.point.biserial.tooltip = Point-biserial measures the correlation between the scores on the entire exam and the scores on the single question (where 1 = correct answer and 0 = incorrect answer). A large correlation indicates that a question is measuring the same construct as the overall exam measures. Value 0.2 to 1 is considered good for this factor, -0.2 to 0.2 is medium and below -0.2 requires improvement.
+label.qb.stats.tooltip = Item analysis is a technique that analyses the student answers to evaluate the effectiveness of questions in an exam. Only students who have finished the activity are taken into consideration. There must be at least 2 students.
Index: lams_central/conf/language/lams/ApplicationResources_es_ES.properties
===================================================================
diff -u -re49f4ca2772f41c3e5dce498bc2d32a66b4f31ad -rd3313eb898d654f090e6ea6c99b3232a65f759f2
--- lams_central/conf/language/lams/ApplicationResources_es_ES.properties	(.../ApplicationResources_es_ES.properties)	(revision e49f4ca2772f41c3e5dce498bc2d32a66b4f31ad)
+++ lams_central/conf/language/lams/ApplicationResources_es_ES.properties	(.../ApplicationResources_es_ES.properties)	(revision d3313eb898d654f090e6ea6c99b3232a65f759f2)
@@ -1102,3 +1102,7 @@
 label.code.style = Estilo de código
 label.code.style.none = Ninguno
 authoring.fla.tool.groups.all = Todas las herramientas
+label.qb.difficulty.index.tooltip = El índice de dificultad representa un porcentaje de las respuestas de los estudiantes que respondieron correctamente a la pregunta. Esta métrica toma un valor entre 0 y 1. Los valores altos indican que la pregunta es fácil, mientras que los valores bajos indican que es difícil. Un valor entre 0.3 y 0.7 es considerado bueno. Valores fuera de este rango, indica que se requieren mejoras.
+label.qb.discrimination.index.tooltip = El índice de discriminación mide qué tan bien una pregunta distingue entre los estudiantes con más conocimientos o habilidades de los que tienen menos. Los valores cercanos a +1 indican que la pregunta funciona bien al discriminar entre los estudiantes de alto rendimiento y los de bajo rendimiento. Un valor entre 0.2 y 1 es considerado bueno, -0.2 a 0.2 es medio y por debajo de -0.2 requiere mejora.
+label.qb.point.biserial.tooltip = El coeficiente biserial-puntal mide la correlación entre los puntajes de todo el examen y los puntajes de una sola pregunta (donde 1 = respuesta correcta y 0 = respuesta incorrecta). Una amplia correlación indica que una pregunta mide el mismo constructo que las medidas generales del examen. Un valor entre 0.2 y 1 es considerado bueno, -0.2 a 0.2 es medio y por debajo de -0.2 requiere mejora.
+label.qb.stats.tooltip = El análisis de elementos es una técnica que analiza las respuestas de los estudiantes para evaluar la efectividad de las preguntas en un examen. Solo se tienen en cuenta los alumnos que hayan finalizado la actividad. Debe haber al menos 2 estudiantes.
Index: lams_central/conf/language/lams/ApplicationResources_no_NO.properties
===================================================================
diff -u -re49f4ca2772f41c3e5dce498bc2d32a66b4f31ad -rd3313eb898d654f090e6ea6c99b3232a65f759f2
--- lams_central/conf/language/lams/ApplicationResources_no_NO.properties	(.../ApplicationResources_no_NO.properties)	(revision e49f4ca2772f41c3e5dce498bc2d32a66b4f31ad)
+++ lams_central/conf/language/lams/ApplicationResources_no_NO.properties	(.../ApplicationResources_no_NO.properties)	(revision d3313eb898d654f090e6ea6c99b3232a65f759f2)
@@ -1092,3 +1092,7 @@
 label.password.user.details = må ikke være det samme som brukerinnlogging, ID, e-post eller navn
 label.password.history = må ikke være det samme som de siste {0} passordene
 authoring.fla.tool.groups.all = Alle
+label.qb.difficulty.index.tooltip = Vanskelighetsgrad indeksen representerer en prosentandel av studentenes svar som svarte riktig på spørsmålet. Denne beregningen har en verdi mellom 0 og 1. Høye verdier indikerer at spørsmålet er enkelt, mens lave verdier indikerer at det er vanskelig.
+label.qb.discrimination.index.tooltip = Diskrimineringsindeks måler hvor godt et spørsmål skiller mellom studenter med mer kunnskap eller dyktighet og de med mindre. Verdier nær +1 indikerer at spørsmålet gjør en god jobb med å skille mellom høyt presterende og dårlige utøvere.
+label.qb.point.biserial.tooltip = Point-biserial måler sammenhengen mellom poengene på hele eksamen og poengene på det enkle spørsmålet (hvor 1 = riktig svar og 0 = feil svar). En stor sammenheng indikerer at et spørsmål måler den samme området som de samlede eksamensmålene.
+label.qb.stats.tooltip = Elementanalyse er en teknikk som analyserer studentens svar for å evaluere effektiviteten av spørsmål i en eksamen. Bare studenter som er ferdig med aktiviteten blir tatt i betraktning. Det må være minst 2 studenter.