Index: lams_central/web/qb/stats.jsp
===================================================================
diff -u -re323adefc0ee1680382462d8bde75544167112bc -re96141f945611c4c619dc27b0b2e65edcd6d0150
--- lams_central/web/qb/stats.jsp	(.../stats.jsp)	(revision e323adefc0ee1680382462d8bde75544167112bc)
+++ lams_central/web/qb/stats.jsp	(.../stats.jsp)	(revision e96141f945611c4c619dc27b0b2e65edcd6d0150)
@@ -384,9 +384,15 @@
 										<td>-</td>
 									</c:when>
 									<c:otherwise>
-										<td><fmt:formatNumber type="number" maxFractionDigits="2" value="${activityDTO.difficultyIndex}" /></td>
-										<td><fmt:formatNumber type="number" maxFractionDigits="2" value="${activityDTO.discriminationIndex}" /></td>
-										<td><fmt:formatNumber type="number" maxFractionDigits="2" value="${activityDTO.pointBiserial}" /></td>
+										<td class="text-center ${activityDTO.difficultyIndex < 0.3 or activityDTO.difficultyIndex > 0.7 ? 'bg-danger' : 'bg-success'}">
+											<fmt:formatNumber type="number" maxFractionDigits="2" value="${activityDTO.difficultyIndex}" />
+										</td>
+										<td class="text-center ${activityDTO.discriminationIndex < -0.2 ? 'bg-danger' : (activityDTO.discriminationIndex < 0.2 ? 'bg-warning' : 'bg-success')}">
+											<fmt:formatNumber type="number" maxFractionDigits="2" value="${activityDTO.discriminationIndex}" />
+										</td>
+										<td class="text-center ${activityDTO.pointBiserial < -0.2 ? 'bg-danger' : (activityDTO.pointBiserial< 0.2 ? 'bg-warning' : 'bg-success')}">
+											<fmt:formatNumber type="number" maxFractionDigits="2" value="${activityDTO.pointBiserial}" />
+										</td>
 									</c:otherwise>
 								</c:choose>
 							</tr>