SI-APRENDE: An Intelligent Learning System ased on SCORM Learning Objects for Training Power Systems Operators - Developing Concepts in Applied Intelligence - page 37

difficult LO. This design was established by the instructors but the pedagogical action
that takes the system is the result of the propagation of a dynamic decision network
that considers the knowledge of the LO and other variables, such as the progress of
the objective, progress of learning activity and the satisfaction of the objectives for
each student.
After two weeks of using the system, the instructors applied a final evaluation
(PostTest) to both groups on the subject of pre-test, obtaining the necessary data to
calculate the learning gain in both groups. According to Hake [5], the following
formulas were applied to determine the learning gain in both groups:

Average pre-Test

(1)

Average post-Test

(2)

Average Relative Gain

(3)

Simple Gain

(4)

We summarize our results in Table 2, where we show the average values for the pre-
Test, the post-Test, the Relative gain and the Simple gain, for the focus and control
groups of each course.

Table 2. Results of Control and Focus Group.

Group Pre-Test

(1)

Post-Test (2) G

(4)

Grel
(3)

Math II Focus 17.5 90 72.5 0.88

Math II Control 10.5 71.63 61.13 0.68

Electricity and Magnetism Focus 8.33 74.67 66.34 0.72

Electricity and Magnetism Control 10 69.11 59.11 0.66

Introduction to Physics Focus 31.25 79 47.75 0.69

Introduction to Physics Control 27.5 55.33 27.83 0.37

As it was shown in the tables, students using the IE had higher relative and simple
learning gains as compared to those students that did not used it.
Although the electrical operators' evaluation process has not finished yet, the qua-
litative opinions show that SI-APRENDE provides a more dynamic and interactive
training to the Operators of Power Plants, where the employees really experience the
acquisition and transfer of skills and knowledge.