Hi Jeremy,
I have a very similar question to the one posed here, but I cannot seem to make it work unfortunately. So I am creating a rating study with 22 photos and 10 questions. Each photo appears ten times with each question so I have 220 items in total. I also have 4 practice items that appear with five of the questions so another 20 items in the beginning. I am using the pick function in order to add breaks and attention checks in between, as well as randomise the items, but some items come up two or three times in a row, something that I want to avoid – I do not wish to have any duplicates.
I have tried replicating the code you provided above (+ uploaded the .js file to js_includes) but with no success so far.
My sequence looks like this:
practice = randomizeNoMoreThan(startsWith("practice_trials"), 1);
critical = randomizeNoMoreThan(startsWith("experimental_trials"), 1);
PennController.Sequence("welcome",
"demographics",
"instruction",
"exampleinstruction",
pick(practice, 20),
"end_practice",
pick(critical, 55),
"attentionCheck1",
pick(critical, 55),
"break",
pick(critical, 55),
"attentionCheck2",
pick(critical, 55),
"send", "final")and then within my trials I have this format (VP is the column with the coding of the photos that I do not want to see more than once in a row):
PennController.Template(
PennController.GetTable("List_1.csv")
.filter("trial_type", "practice")
,
variable => ["practice_trials_row.VP"
PennController.Template(
PennController.GetTable("List_1.csv")
.filter("trial_type", "experimental")
,
variable => ["experimental_trials_row.VP"Is there a way to fix this? (Link to the experiment: https://korpling.german.hu-berlin.de/ibexexps/tsiapoud/Fotodatenbank_Pretest_List_1/experiment.html)
Thanks in advance!
Dimitra
