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Web Experiment Subject ID

Author	Message
Toni13	Toni13 posted 8 Years Ago HOT Topic Details Share Topic
Group: Awaiting Activation Posts: 4, Visits: 18	Hi! I am currently having some difficulties with launching my experiment online. I told Inquisit to assign subject IDs in a sequential order to my participants. However when I take a look at the log file, subject ID 7 for example is used 3 times in a row. This ruins the functioning of my experiment since I need 3 groups of the same size. I assigned subject 1 of 3 to Group 1, subject 2 of 3 to Group 2 and subject 3 of 3 to Group 3. This worked perfectly fine using the Lab Version. Is it possible that this problem only occurs because I have been testing the study on my computer several times in a row? Maybe Inquisit is able to recognize which computer and browser I am using and thus assigns the same ID to one person if he/she is rerunning the experiment in a very short time. Any help is very much appreciated! Thanks a lot!
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Dave	Dave posted 8 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	> Is it possible that this problem only occurs because I have been testing the study on my computer several times in a row? Yes, very likely so. The subject number is generated when the launch page is loaded by your browser. If you do not re-load (i.e. refresh) the launch page between your test runs, no new id will be generated / the already generated one may be re-used.
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Toni13	Toni13 posted 8 Years Ago ANSWER Post Details Share Post
Group: Awaiting Activation Posts: 4, Visits: 18	thanks so much!! :) Also, do you have any idea why the web version is running fine on several computers except for macs? On Likert scales some words are covered by others and some pictures have changed position... I tried several defaults commands to fix this but it doesn't seem to work... :(
	Reply Like 54
Dave	Dave posted 8 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	> On Likert scales some words are covered by others and some pictures have changed position... Could you (1) share some example code for a <likert> element that shows this issue and (2) a screenshot depicting it?
	Reply Like 63
Toni13	Toni13 posted 8 Years Ago ANSWER Post Details Share Post
Group: Awaiting Activation Posts: 4, Visits: 18	This is an example Code forone of my likert scales: <likert AM_4> /fontstyle = ("Arial", 15pt, false) /stimulustimes = [0=AM_4_1; 0=questioncount] /Position = (50,50) /anchors = [1="Trifft überhaupt nicht auf mich zu"; 2="Trifft weniger auf mich zu"; 3="Trifft überwiegend auf mich zu"; 4="Triff genau auf mich zu"] /numpoints = 4 /anchorwidth= 35% </likert> This is what this page looks like on a mac: Thanks for your help!
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Dave	Dave posted 8 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 104K	As you can see from the screenshot, there isn't enough horizontal screen estate / space to display the anchor text segments without overlap. Try adjusting the fontsize in your /fontstyle attribute, particularly express it in percentages not in fixed point (pt) values. Also, the /anchorwidth seems somewhat too large. I'd try something along the following lines: <likert AM_4> /fontstyle = ("Arial", 2%, false) /stimulustimes = [0=AM_4_1, questioncount] /Position = (50,50) /anchors = [1="Trifft überhaupt nicht auf mich zu"; 2="Trifft weniger auf mich zu"; 3="Trifft überwiegend auf mich zu"; 4="Triff genau auf mich zu"] /numpoints = 4 /anchorwidth= 30% </likert>
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