Environmental Engineering Reference
In-Depth Information
1.
subject's participation = −0.711 + ( 7.990 * percentage of talking time)
When the group is at the Implementation stage the applied formula includes the subject
implementation as follows:
2.
subject's participation = −1.759 + (6.742 * percentage of talking time) + (4.392 * percentage
of manipulation time)
If the participant has an under participation (according to the formulas 1 or 2), that is when
the result is under 1, this message encouraging him/her to increase his/her participation is
sent: “<<participantName>>, you should try to increase your participation”.
If the participant has an over participation, when the formula result is more than 3, the sent
message is: “<<participantName>>, you should try to involve more your peers”.
Message No addressed to with the intention to
5 / 6 / 7
SS / SA / SB encourage his/her participation
8 / 9 / 10
SS / SAB/ SB diminish his/her participation
Table 7. Messages from the facilitator regarding participation
The number of the triggered message corresponds to the user to be encouraged for
participation or to diminish it as shown in Table 7; the three users were denominated SS, SA
and SB. All the messages, although they have a participant target, are sent to the three group
members.
When a message appears on the screen, the group members can agree or disagree with it by
pressing the keys “O” for OK to agree or “N” for NO to disagree. Although users are not
forced to answer the messages, when they do, a number of actions are taken: the message
disappears from the screen; the chronograph of elapsed times is set to 0; the participant
times are also set to 0; the participants' answers are included in the log file; and, if at least
two of the three participants disagree with the message, it is deactivated, that means it will
not appear again.
The log file has now information regarding the facilitator as another actor in the scenario,
when the PVA sends a message and which one is sent by its number. There is an 11th
message just to say “Good bye”.
This second trial followed the same method as the first one, with the next differences:
Subjects
. Twelve undergraduate students, 13 males from the Informatics School and a female
from the Chemistry School at the Universidad de Guadalajara participated. Four groups of
triads were formed voluntarily.
Procedure.
Participants filled out a questionnaire at the end of the session.
Data
. The starting time is now considered when the three computers are connected and not
when the first action takes place as in the first trial.
Discussion periods
were identified same as in the first trial, when the three group members
have had at least one talking-turn, but now the pauses were considered in the range of 2000
ms since the system registers now the milliseconds.
