|
|
|
Forum Newbie
Group: Forum Members
Last Login: 10/23/2007 12:32:02 PM
Posts: 1,
Visits: 13
|
|
I'm a first time poster and relatively new E-prime user, and was hoping that someone might be able to help me solve a dilemma I'm having regarding E-Basic. I am trying to set up my task as follows:
The participant is shown a prime (a picture of a door), and is given the choice to either proceed with the trial by choosing 'yes' (in this case, that means viewing a picture stimulus), or to not proceed with the trial by choosing 'no' and view a blank screen. I have written E-Basic script that handles this by going to one of two different active states (the picture or the blank screen) on a slide object based on the Y or N response. However, there is also a followup to the prime (a picture of a door opening) that I want the participant to see if they choose Yes, but not if they choose No. Therefore, I'd like to also set up E-basic to also go to a label object that would skip the open door pic. However, all attempts I have made to join these commands in E-Basic have failed, and only the first one is executed. Does anyone know how to set up a command that would be like a "If...Then, And...., Else If...Then" statement, or know of alternative ways to join two commands that stem from the same participant response (i.e., both contingent on a participant response of 'N')? Any help would be very much appreciated.
|
|
|
|
|
Forum Newbie
Group: Forum Members
Last Login: 1/11/2008 4:08:57 AM
Posts: 4,
Visits: 11
|
|
| There're probably much better methods, but I think this might work. If you have three slides: Slide1: The initial door, collects responses. Slide2: Two states: "OpenDoor" (contains e.g. a picture of a door half-open) and "StayingClosed". Slide3: Two states: "YesState" and "NoState". Then you can put this inline code between the first two slides: if Slide1.Resp = "y" then
Slide2.ActiveState = "OpenDoor"
Slide3.ActiveState = "YesState"
else
Slide2.ActiveState = "StayingClosed"
Slide3.ActiveState = "NoState"
end if
Pressing "n" (or anything other than "y" with this code) at Slide1 changes the states on slides 2 and 3 so that the door stays close (or just that the screen goes empty). Pressing "y" is followed by an opening door picture and then the behind-the-door picture. Regards, Thomas
|
|
|
|
|
Forum Guru
Group: Moderators
Last Login: 10/30/2008 3:23:17 PM
Posts: 127,
Visits: 924
|
|
Hello,
Thomas' response will certainly work (as the attached sample proves). If you wanted to skip the second Slide object, you could alternatively place a Label object between Slide2 and Slide3 and then alter the If...Then...Else statement as follows (note that Slide2 would have only 1 SlideState that presents an open door):
If Slide1.Resp = "y" Then
Slide3.ActiveState = "YesState"
Else
Slide3.ActiveState = "NoState"
Goto Label1
End If
You can take a look at the modified sample to see how this works.
- Matt
PST Technical Consultant
http://pstnet.com
|
|
|
|
