Index: lams_tool_assessment/conf/language/lams/ApplicationResources.properties
===================================================================
diff -u -rf299a43b38f1c06f1c9a0810b3ae6205b10e0269 -r31e313007d1fb90ee49e4781bdfaa0929b2e99e5
--- lams_tool_assessment/conf/language/lams/ApplicationResources.properties	(.../ApplicationResources.properties)	(revision f299a43b38f1c06f1c9a0810b3ae6205b10e0269)
+++ lams_tool_assessment/conf/language/lams/ApplicationResources.properties	(.../ApplicationResources.properties)	(revision 31e313007d1fb90ee49e4781bdfaa0929b2e99e5)
@@ -297,7 +297,7 @@
 label.number.learners = Number of learners
 label.percentage = Percentage
 label.operation.failed = Operation failed.
-label.number.groups.finished = Number of groups finished
+label.number.groups.finished = Number of groups submitted
 label.marks = Marks
 label.number.learners.in.mark.range = Number of learners in mark range
 label.number.groups.in.mark.range = Number of groups in mark range
@@ -425,12 +425,12 @@
 label.authoring.basic.question.version.stats.tooltip = See this version's stats page
 label.export.questions = Questions
 label.export.group = Group
-label.number.learners.per.activity = Total number of learners
+label.number.learners.per.activity = Total number of submitted results
 label.activity.stats = Activity stats
 label.group.stats = Groups Analytics
 label.median.mark = Median:
 label.modes.mark = Mode:
-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 finished the activity are taken into consideration.
+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.
 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.