Changes between Version 2 and Version 3 of BoltTutorialAnalytics

Timestamp:

Feb 21, 2008, 7:59:42 AM (16 years ago)

Author:

davea

Comment:

--

BoltTutorialAnalytics

@@ -1 +1 @@
 = Bolt Tutorial, Part III: Analytics =
+
+== Micro-experiments ==
+
+Suppose you have two alternative lessons for a given concept.
+They may be completely different,
+or they may differ in appearance.
+Which is better?
+Or is each better for some identifiable subset of students?
+To investigate, create a '''micro-experiment'''
+in which students are randomly shown one lesson or the other,
+and then perform an exercise.
+{{{
+function show_lesson() {
+    return select(
+        name('show_lesson'),
+        valuator('rand'),
+        lesson(
+            filename('lesson1.php')
+        ),
+        lesson(
+            filename('lesson2.php')
+        ),
+    }
+);
+
+return sequence(
+    name('course'),
+    show_lesson(),
+    exercise(
+        filename('exercise.php')
+    )
+);
+}}}
+
+This uses a new control structure, '''select()'''.
+This takes a 'valuator' function (in this case, random)
+and a set of units.
+It shows the unit for which the valuator function has the largest value.
+
+== Lesson comparison ==
+
+After a number of students have passed through the micro-experiment,
+you may have enough data to conclude something about your lessons.
+To do this, go to the course Control Panel
+and click Lesson Compare.
 
 == Course maps ==
 
-== Lesson comparison ==