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.