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Dear Forum,
I am having some trouble randomizing my video stimuli and I hope you can help me.
My participants will watch several video clips. Each video is followed by a surveypage containing questions about that video. I want the video's to be randomized, but the questions about the video need to remain the same.
In total I have 36 videos. But I have 4 different types of videos (each type has 9 video's) which require their own response (press a left or a right key).
I have tried using noreplacenorepeat, but this does not seem to be working. Inquisit still selects some video's multiple times and others not at all. And I tried using /resetinterval. But I don't know how or where to specify this? Another solution may be to put all the different videos in one 'object' and then randomly select from that object, but I have no idea how to do this.
I hope you can help me! Thank you in advance,
Marjam
************STIMULI*******************
<item Dom.left> /1 = "Dominant_Links_1_120ms_Wit.avi" /2 = "Dominant_Links_2_120ms_Wit.avi" /3 = "Dominant_Links_3_120ms_Wit.avi" /4 = "Dominant_Links_4_120ms_Wit.avi" /5 = "Dominant_Links_5_120ms_Wit.avi" /6 = "Dominant_Links_6_120ms_Wit.avi" /7 = "Dominant_Links_7_120ms_Wit.avi" /8 = "Dominant_Links_8_120ms_Wit.avi" /9 = "Dominant_Links_10_120ms_Wit.avi" </item>
<item Dom.right> /1 = "Dominant_Rechts_1_120ms_Wit.avi" /2 = "Dominant_Rechts_2_120ms_Wit.avi" /3 = "Dominant_Rechts_3_120ms_Wit.avi" /4 = "Dominant_Rechts_4_120ms_Wit.avi" /5 = "Dominant_Rechts_5_120ms_Wit.avi" /6 = "Dominant_Rechts_6_120ms_Wit.avi" /7 = "Dominant_Rechts_7_120ms_Wit.avi" /8 = "Dominant_Rechts_8_120ms_Wit.avi" /9 = "Dominant_Rechts_10_120ms_Wit.avi" </item>
<item Sub.left> /1 = "Submissief_Links_1_120ms_Wit.avi" /2 = "Submissief_Links_2_120ms_Wit.avi" /3 = "Submissief_Links_3_120ms_Wit.avi" /4 = "Submissief_Links_4_120ms_Wit.avi" /5 = "Submissief_Links_5_120ms_Wit.avi" /6 = "Submissief_Links_6_120ms_Wit.avi" /7 = "Submissief_Links_7_120ms_Wit.avi" /8 = "Submissief_Links_8_120ms_Wit.avi" /9 = "Submissief_Links_10_120ms_Wit.avi" </item>
<item Sub.right> /1 = "Submissief_Rechts_1_120ms_Wit.avi" /2 = "Submissief_Rechts_2_120ms_Wit.avi" /3 = "Submissief_Rechts_3_120ms_Wit.avi" /4 = "Submissief_Rechts_4_120ms_Wit.avi" /5 = "Submissief_Rechts_5_120ms_Wit.avi" /6 = "Submissief_Rechts_6_120ms_Wit.avi" /7 = "Submissief_Rechts_7_120ms_Wit.avi" /8 = "Submissief_Rechts_8_120ms_Wit.avi" /9 = "Submissief_Rechts_10_120ms_Wit.avi" </item>
<video Dom.left> / items = Dom.left / position = (50,40) / size = (450, 450) / select = noreplacenorepeat </video>
<video Dom.right> / items = Dom.right / position = (50,40) / size = (450, 450) / select = noreplacenorepeat </video>
<video Sub.left> / items = Sub.left / position = (50,40) / size = (450, 450) / select = noreplacenorepeat </video>
<video Sub.right> / items = Sub.right / position = (50,40) / size = (450, 450) / select = noreplacenorepeat </video>
************RESPONSE OPTIONS*******************
<item resp.left> /1 = "Left.jpg" </item>
<picture resp.left> / items = resp.left / position = (35,80) / size = (200, 200) / erase = false </picture>
<item resp.right> /1 = "Right.jpg" </item>
<picture resp.right> / items = resp.right / position = (65,80) / size = (200, 200) / erase = false </picture>
************TRIALS*******************
<trial Dom.left> / pretrialpause = 1250 / stimulustimes=[0=Dom.left, resp.left, resp.right] / correctresponse = ("p") / validresponse = ("q", "p") </trial>
<trial Dom.right> / pretrialpause = 1250 / stimulustimes=[0=Dom.right, resp.left, resp.right] / correctresponse = ("q") / validresponse = ("q", "p") </trial>
<trial Sub.left> / pretrialpause = 1250 / stimulustimes=[0=Sub.left, resp.left, resp.right] / correctresponse = ("p") / validresponse = ("q", "p") </trial>
<trial Sub.right> / pretrialpause = 1250 / stimulustimes=[0=Sub.right, resp.left, resp.right] / correctresponse = ("q") / validresponse = ("q", "p") </trial>
************Questions*******************
<slider competitive> /caption = "Hoe competitief vond je de speler?" /labels = ("Helemaal niet competitief", "Heel erg competitief") /fontstyle= ("Arial", -12) /range = (0,100) /increment = 1 /position = (20, 10) /slidersize = (50,5) /showticks = false /showtooltips = false </slider>
<slider experience> /caption = "Hoe ervaren vond je de speler?" /labels = ("Helemaal niet ervaren", "Heel erg ervaren") /fontstyle= ("Arial", -12) /range = (0,100) /increment = 1 /position = (20, 30) /slidersize = (50,5) /showticks = false /showtooltips = false </slider>
<slider confidence> /caption = "Hoe zelfverzekerd vond je de speler?" /labels = ("Helemaal niet zelfverzekerd", "Heel erg zelfverzekerd") /fontstyle= ("Arial", -12) /range = (0,100) /increment = 1 /position = (20, 50) /slidersize = (50,5) /showticks = false /showtooltips = false </slider>
<slider expectancy> /caption = "Hoe zeker ben je dat je de bal zou kunnen stoppen?" /labels = ("Helemaal niet zeker", "Volledig zeker") /fontstyle= ("Arial", -12) /range = (0,100) /slidersize = (50,5) /increment = 1 /position = (20, 70) /showticks = false /showtooltips = false </slider>
<surveypage Questions1> /questions = [1 = competitive; 2 = experience; 3 = confidence; 4 = expectancy] </surveypage>
************BLOCKS*******************
<block Blok1Exp> /trials = [1 = noreplacenorepeat (Dom.left, Dom.right, Sub.left, Sub.right); 2 = Questions1] </block>
<expt Experiment> / blocks = [1 - 36 = Blok1Exp] </expt>
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Your setup is wrrong for what you want to do. You'll want to do
<trial Dom.left> / pretrialpause = 1250 / stimulustimes=[0=Dom.left, resp.left, resp.right] / correctresponse = ("p") / validresponse = ("q", "p") / branch = [surveypage.questions1] </trial>
<trial Dom.right> / pretrialpause = 1250 / stimulustimes=[0=Dom.right, resp.left, resp.right] / correctresponse = ("q") / validresponse = ("q", "p") / branch = [surveypage.questions1] </trial>
<trial Sub.left> / pretrialpause = 1250 / stimulustimes=[0=Sub.left, resp.left, resp.right] / correctresponse = ("p") / validresponse = ("q", "p") / branch = [surveypage.questions1] </trial>
<trial Sub.right> / pretrialpause = 1250 / stimulustimes=[0=Sub.right, resp.left, resp.right] / correctresponse = ("q") / validresponse = ("q", "p") / branch = [surveypage.questions1] </trial>
with
<block Blok1Exp> /trials = [1-36 = noreplacenorepeat (Dom.left, Dom.right, Sub.left, Sub.right);] </block>
<expt Experiment> / blocks = [1 = Blok1Exp] </expt>
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