Index: lams_admin/conf/language/lams/ApplicationResources_es_ES.properties
===================================================================
diff -u -r2d3c74d54fc59c736099961fb33d9d1dd30263d0 -re52d30b33ec37f94d5838417763f6b29d6cc7d70
--- lams_admin/conf/language/lams/ApplicationResources_es_ES.properties	(.../ApplicationResources_es_ES.properties)	(revision 2d3c74d54fc59c736099961fb33d9d1dd30263d0)
+++ lams_admin/conf/language/lams/ApplicationResources_es_ES.properties	(.../ApplicationResources_es_ES.properties)	(revision e52d30b33ec37f94d5838417763f6b29d6cc7d70)
@@ -656,7 +656,9 @@
 label.password.common = no debe ser de uso común o previamente violada
 tool.groups.open.button = Administrar grupos de herramientas
 tool.groups.open.button.tooltip = Administrar grupos de herramientas
+tool.groups.dialog.title = Administrar grupos de herramientas
 tool.groups.dialog.instructions = Agregar grupo
+tool.groups.add.group.button = Agregar grupo
 tool.groups.remove.group.button.tooltip = Eliminar grupo
 tool.groups.group.default.name = Sin nombre
 tool.groups.remove.confirm = ¿Está seguro que quiere eliminar este grupo?
Index: lams_central/conf/language/lams/ApplicationResources.properties
===================================================================
diff -u -rb2b9056f147f07040dab6ab9c92d7b505776996f -re52d30b33ec37f94d5838417763f6b29d6cc7d70
--- lams_central/conf/language/lams/ApplicationResources.properties	(.../ApplicationResources.properties)	(revision b2b9056f147f07040dab6ab9c92d7b505776996f)
+++ lams_central/conf/language/lams/ApplicationResources.properties	(.../ApplicationResources.properties)	(revision e52d30b33ec37f94d5838417763f6b29d6cc7d70)
@@ -943,10 +943,6 @@
 label.qb.stats.usage.difficulty = Difficulty index
 label.qb.stats.usage.discrimination = Discrimination index
 label.qb.stats.usage.biserial = Point biserial
-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.
-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.versions = Previous versions
 label.qb.stats.versions.none = This question does not have any previous versions
 label.qb.stats.versions.created = Created date
@@ -984,9 +980,6 @@
 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
@@ -1110,3 +1103,7 @@
 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 -r2d3c74d54fc59c736099961fb33d9d1dd30263d0 -re52d30b33ec37f94d5838417763f6b29d6cc7d70
--- lams_central/conf/language/lams/ApplicationResources_el_GR.properties	(.../ApplicationResources_el_GR.properties)	(revision 2d3c74d54fc59c736099961fb33d9d1dd30263d0)
+++ lams_central/conf/language/lams/ApplicationResources_el_GR.properties	(.../ApplicationResources_el_GR.properties)	(revision e52d30b33ec37f94d5838417763f6b29d6cc7d70)
@@ -1103,3 +1103,7 @@
 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 -r2d3c74d54fc59c736099961fb33d9d1dd30263d0 -re52d30b33ec37f94d5838417763f6b29d6cc7d70
--- lams_central/conf/language/lams/ApplicationResources_en_AU.properties	(.../ApplicationResources_en_AU.properties)	(revision 2d3c74d54fc59c736099961fb33d9d1dd30263d0)
+++ lams_central/conf/language/lams/ApplicationResources_en_AU.properties	(.../ApplicationResources_en_AU.properties)	(revision e52d30b33ec37f94d5838417763f6b29d6cc7d70)
@@ -1103,3 +1103,7 @@
 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 -r2d3c74d54fc59c736099961fb33d9d1dd30263d0 -re52d30b33ec37f94d5838417763f6b29d6cc7d70
--- lams_central/conf/language/lams/ApplicationResources_es_ES.properties	(.../ApplicationResources_es_ES.properties)	(revision 2d3c74d54fc59c736099961fb33d9d1dd30263d0)
+++ lams_central/conf/language/lams/ApplicationResources_es_ES.properties	(.../ApplicationResources_es_ES.properties)	(revision e52d30b33ec37f94d5838417763f6b29d6cc7d70)
@@ -1103,3 +1103,7 @@
 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 -r2d3c74d54fc59c736099961fb33d9d1dd30263d0 -re52d30b33ec37f94d5838417763f6b29d6cc7d70
--- lams_central/conf/language/lams/ApplicationResources_no_NO.properties	(.../ApplicationResources_no_NO.properties)	(revision 2d3c74d54fc59c736099961fb33d9d1dd30263d0)
+++ lams_central/conf/language/lams/ApplicationResources_no_NO.properties	(.../ApplicationResources_no_NO.properties)	(revision e52d30b33ec37f94d5838417763f6b29d6cc7d70)
@@ -1093,3 +1093,7 @@
 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.
Index: lams_tool_assessment/conf/language/lams/ApplicationResources_el_GR.properties
===================================================================
diff -u -r27529f93003e9c7aaa703d559104b1de95135205 -re52d30b33ec37f94d5838417763f6b29d6cc7d70
--- lams_tool_assessment/conf/language/lams/ApplicationResources_el_GR.properties	(.../ApplicationResources_el_GR.properties)	(revision 27529f93003e9c7aaa703d559104b1de95135205)
+++ lams_tool_assessment/conf/language/lams/ApplicationResources_el_GR.properties	(.../ApplicationResources_el_GR.properties)	(revision e52d30b33ec37f94d5838417763f6b29d6cc7d70)
@@ -440,3 +440,4 @@
 label.monitoring.discussion.start = Έναρξη συζήτησης
 label.authoring.advance.discussion = Ενεργοποίηση ψηφοφορίας συζήτησης συναισθημάτων
 label.authoring.advance.discussion.tooltip = Όταν είναι ενεργοποιημένη, από την παρακολούθηση TBL, οι εκπαιδευτικοί μπορούν να ξεκινήσουν άμεσες δημοσκοπήσεις για κάθε ερώτηση για να αξιολογήσουν την κατανόηση των εκπαιδευόμενων.
+label.learning.draft.autosave.error = Φαίνεται ότι έχετε χάσει τη σύνδεση με τον διακομιστή. Ελέγξτε τη σύνδεσή σας στο Διαδίκτυο και κάντε κλικ στο OK. Εάν αυτό  συνεχίσει να συμβαίνει, ενημερώστε τον εκπαιδευτικό σας.
Index: lams_tool_assessment/conf/language/lams/ApplicationResources_es_ES.properties
===================================================================
diff -u -r5d05bdfc363573135e137ba6ec059fc53af3645c -re52d30b33ec37f94d5838417763f6b29d6cc7d70
--- lams_tool_assessment/conf/language/lams/ApplicationResources_es_ES.properties	(.../ApplicationResources_es_ES.properties)	(revision 5d05bdfc363573135e137ba6ec059fc53af3645c)
+++ lams_tool_assessment/conf/language/lams/ApplicationResources_es_ES.properties	(.../ApplicationResources_es_ES.properties)	(revision e52d30b33ec37f94d5838417763f6b29d6cc7d70)
@@ -429,9 +429,9 @@
 label.median.mark = Mediana:
 label.modes.mark = Modo:
 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.
-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.
-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.
-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.
+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.monitoring.change.leader = Cambiar líder
 label.monitoring.leader.successfully.changed = Líder cambiado
 label.monitoring.leader.not.changed = El líder no fue cambiado
Index: lams_tool_preview/conf/language/lams/ApplicationResources_es_ES.properties
===================================================================
diff -u -raa932dd995a61adeed918456c6257a4a9a9cea74 -re52d30b33ec37f94d5838417763f6b29d6cc7d70
--- lams_tool_preview/conf/language/lams/ApplicationResources_es_ES.properties	(.../ApplicationResources_es_ES.properties)	(revision aa932dd995a61adeed918456c6257a4a9a9cea74)
+++ lams_tool_preview/conf/language/lams/ApplicationResources_es_ES.properties	(.../ApplicationResources_es_ES.properties)	(revision e52d30b33ec37f94d5838417763f6b29d6cc7d70)
@@ -198,3 +198,4 @@
 label.sa = SA
 # Stands for Peer Assessment
 label.pa = PA
+email.crtieria.table.explanation = Calificación recibida por el estudiante en comparación con el promedio
Index: lams_tool_scratchie/conf/language/lams/ApplicationResources.properties
===================================================================
diff -u -r2d760fc4af01f96960c448eb638c99d5c642a78d -re52d30b33ec37f94d5838417763f6b29d6cc7d70
--- lams_tool_scratchie/conf/language/lams/ApplicationResources.properties	(.../ApplicationResources.properties)	(revision 2d760fc4af01f96960c448eb638c99d5c642a78d)
+++ lams_tool_scratchie/conf/language/lams/ApplicationResources.properties	(.../ApplicationResources.properties)	(revision e52d30b33ec37f94d5838417763f6b29d6cc7d70)
@@ -279,9 +279,9 @@
 label.monitoring.leader.successfully.changed = Leader changed
 label.monitoring.leader.not.changed = Leader was not changed
 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.
-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.
-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.
-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.
+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.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.median.mark = Median:
 label.modes.mark = Mode:
 label.time.limit.tooltip = Number of minutes that each group will get from the moment the leader enters this activity. Leave it at 0 for no time restrictions.
Index: lams_tool_scratchie/conf/language/lams/ApplicationResources_en_AU.properties
===================================================================
diff -u -r2d760fc4af01f96960c448eb638c99d5c642a78d -re52d30b33ec37f94d5838417763f6b29d6cc7d70
--- lams_tool_scratchie/conf/language/lams/ApplicationResources_en_AU.properties	(.../ApplicationResources_en_AU.properties)	(revision 2d760fc4af01f96960c448eb638c99d5c642a78d)
+++ lams_tool_scratchie/conf/language/lams/ApplicationResources_en_AU.properties	(.../ApplicationResources_en_AU.properties)	(revision e52d30b33ec37f94d5838417763f6b29d6cc7d70)
@@ -279,9 +279,9 @@
 label.monitoring.leader.successfully.changed = Leader changed
 label.monitoring.leader.not.changed = Leader was not changed
 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.
-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.
-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.
-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.
+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.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.median.mark = Median:
 label.modes.mark = Mode:
 label.time.limit.tooltip = Number of minutes that each group will get from the moment the leader enters this activity. Leave it at 0 for no time restrictions.
Index: lams_tool_scratchie/conf/language/lams/ApplicationResources_es_ES.properties
===================================================================
diff -u -r2d760fc4af01f96960c448eb638c99d5c642a78d -re52d30b33ec37f94d5838417763f6b29d6cc7d70
--- lams_tool_scratchie/conf/language/lams/ApplicationResources_es_ES.properties	(.../ApplicationResources_es_ES.properties)	(revision 2d760fc4af01f96960c448eb638c99d5c642a78d)
+++ lams_tool_scratchie/conf/language/lams/ApplicationResources_es_ES.properties	(.../ApplicationResources_es_ES.properties)	(revision e52d30b33ec37f94d5838417763f6b29d6cc7d70)
@@ -279,9 +279,9 @@
 label.monitoring.leader.successfully.changed = Líder cambiado
 label.monitoring.leader.not.changed = El líder no fue cambiado
 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.
-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.
-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.
-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.
+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.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.median.mark = Mediana:
 label.modes.mark = Modo:
 label.time.limit.tooltip = Número de minutos que tendrá cada grupo desde que el líder ingresa a esta actividad. Déjelo en 0 para no tener restricciones de tiempo.
Index: lams_tool_whiteboard/conf/language/lams/ApplicationResources_el_GR.properties
===================================================================
diff -u -rad77e551961dcada00cf13763d393dbc2c08bcfa -re52d30b33ec37f94d5838417763f6b29d6cc7d70
--- lams_tool_whiteboard/conf/language/lams/ApplicationResources_el_GR.properties	(.../ApplicationResources_el_GR.properties)	(revision ad77e551961dcada00cf13763d393dbc2c08bcfa)
+++ lams_tool_whiteboard/conf/language/lams/ApplicationResources_el_GR.properties	(.../ApplicationResources_el_GR.properties)	(revision e52d30b33ec37f94d5838417763f6b29d6cc7d70)
@@ -139,3 +139,4 @@
 warning.comment.blank = Λείπει κείμενο σχολίου.
 label.fullscreen.open = Εμφάνιση σε πλήρη οθόνη
 label.fullscreen.close = Κλείσιμο πλήρους οθόνης
+admin.id.prefix = Πρόθεμα ταυτότητας (χρησιμοποιήστε μόνο γράμματα)