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Wink onset detection feature
Posted by: arielchan - 08-21-2021, 11:29 AM - Forum: Study Grammar & Management - Replies (3)

As I'm extracting reaction time for one of my experiments run on FF, I have the following question about the onset detection feature of audio responses. If I have the setting of "delay": 0.3 for the test trials in my trial template, does the detected reaction time include the "0.3"? In other words, is the reaction time calculated from only the start of my stimuli till the point at which the participant first starts to speak, or is it calculated from the start of the trial till the point at which the participant first starts to speak?

Thank you so much!

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  Minor Study Grammar Update 08/18/2021
Posted by: Ting - 08-19-2021, 09:32 AM - Forum: New Study Grammar Features - No Replies

Dear Researchers,

The FindingFive Study Grammar has been updated to include the following new features, bugfixes, and other minor changes.

New Features

Bug fixes
  • No bug fixes in this update
Other changes
  • If a study features audio recording or other actions that require microphone access, the way that participants are asked to share their microphone access is now more intuitive to participants. 
  • If a participant uses a keyboard with media control keys like "Play" and "Stop", pressing those keys will no longer have an effect on audio and video stimuli.

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  Duration / Feedback / Feedback Duration
Posted by: [email protected] - 08-18-2021, 10:05 PM - Forum: Experimental Design - Replies (3)

Greetings,

The study is about English grammar and the treatment consists of 99 fill-in-the-blank sentences. Half of the sentences are untimed, i.e. participants move at their own pace but the other half are timed meaning that each sentence is shown for 27 seconds and it automatically moves to the next sentence which is untimed. All the sentences must show feedback but feedback for the timed sentences must be displayed for 3 seconds before moving automatically to the next sentence which is untimed.

Here are my questions below:

  1. How do I underline text stimuli? The stimuli are underlined "stimuli bank" but it doesn't show up in the preview.
  2. How do I display some individual sentences for exactly 27 seconds as well as the feedback for each of these timed sentences? In other words, sentence1 is shown for 27 seconds followed automatically by the feedback for 3 seconds before it moves on automatically to sentence2, along with its feedback, which are not timed.
  3. I need to use fill-in-the-blank responses but how do I display "correct" and "incorrect, the correct answer is..." feedback for each sentence? How would I go about displaying the feedback for some of the sentences for exactly 3 seconds before it automatically moves on to the next sentence?
  4. How do I upload several images all at once? 
  5. How do I place three sentences on their on their individual line instead of having them follow each other like sentences in a paragraph? I know how to create paragraphs but I just some sentences to be next to each other on their own line. 
  6. I have two experimental groups and one control group. Do I need to create three separate experiments?

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  mute videos
Posted by: atfrederiksen - 08-13-2021, 02:53 PM - Forum: Study Grammar & Management - Replies (3)

Is it possible to mute video stimuli in Finding Five?

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  keeping track of response choice locations?
Posted by: atfrederiksen - 08-13-2021, 02:51 PM - Forum: Study Grammar & Management - Replies (1)

I am working on a comprehension experiment where participants see video recorded sentences and choose their response to the sentence with a button press. I would like to keep track of whether the response they choose is on the left of right side of the screen. 
Right now, I have button location randomized automatically. I can of course undo that and instead create pseudo randomization in my stimulus list by hand. But before I go that route, I thought I'd ask if there is a way keep the randomization and obtain information about response choice locations in the output?
Thanks!

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  disable spacebar keypress for 'Continue' button
Posted by: atfrederiksen - 08-07-2021, 07:22 PM - Forum: Study Grammar & Management - Replies (4)

Is there a way to do this? I find that when an instruction follows a self-paced reading trials (where participants have been clicking the spacebar rapidly), it risks being skipped unintentionally. So for certain trials, I would like to require the a mouse click to advance to the next trial.

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  Video stimulus crashes
Posted by: atfrederiksen - 08-06-2021, 05:50 PM - Forum: Study Grammar & Management - Replies (6)

Has anyone experienced long video stimuli crashing? I have one video that keeps crashing at 5:42. It seems to be a feature of the file somehow, because the same thing happens in an experiment where the only trial is the video. I have tried setting a fixed duration and leaving duration unspecified, and it doesn't seem to make a difference. The video plays without issues outside of the experiment (i.e. when i play it from Resource files). I have another video of the same duration that plays just fine in the same experiment - both videos are .mp4. Any advice is appreciated!

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  Disable play/pause key on keyboard for video stimuli?
Posted by: atfrederiksen - 08-04-2021, 03:41 PM - Forum: Study Grammar & Management - Replies (6)

Is there a way to disable the play/pause key on the keyboard for video stimuli. I'm trying to avoid that my participants pause the video.
I have auto-play enabled and there are no clickable buttons visible. But pressing the play/pause button on the keyboard still pauses the video.

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  possible bug: missing file error
Posted by: sten_knutsen - 07-30-2021, 12:48 PM - Forum: Platform Improvement - Replies (4)

I was running through my experiment and when I got to trial 76 (my trials are hard coded, not randomized) I got an error that "The file 205_frog_shove_monkey.mp3 is either missing or in an incorrect format. Please fix the problem and preview again."
I checked and saw that that file did indeed exist; but just for kicks, I decided to upload a new file (205_frog_shove_monkey_copy.mp3) and updated the audio stimuli for trials 76 to reflect the new filename in "content".
I ran the experiment again, but this time I got the error "The file 205_frog_shove_monkey_copy.mp3 is either missing or in an incorrect format. Please fix the problem and preview again."

So the "missing file" did not seem to be the problem.
Next, I went into Procedure and deleted trials 1-74 from the experimental block to see if I could get trial 76 to play at all.
I ran the experiment again, and trial 76 played perfectly, no error message.
So why would there be an error message when I started with trial 1 and went to 76, but not when I started from trial 75?
Next, I put back trials 1-74 so the block was complete again. Now I wondered, could this have something to do, not with the fact that there's something wrong with trial 76, but there is something buggy going on when this block reaches the 76th trial position in the block.
To test this, I deleted just trial 76 from the block, so now the trials would proceed from 1-75 and then 77. My hypothesis was that if there is something wrong with the 76th position, I would get an error message about trial 77's audio file. . . .and that's exactly what happened.
Any idea what's going on?

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  Any way of adding metadata to results?
Posted by: sten_knutsen - 07-30-2021, 10:49 AM - Forum: Platform Improvement - Replies (1)

Is there any way of adding metadata columns to results?
For instance, I am using audio stimuli of sentences that are either "active" or "passive" syntactic voice. I tried to do this by coding "voice":"active" my active audio stimuli; and coding "voice":"passive" in my passive audio stimuli. Although this coding was accepted as grammatical in the stimuli section, none of this information shows up in the results.
I would also like to include other information about the stimuli as well -- is there any way of doing this? (I know that as long as trials are uniquely identified I could just join my results file with a separate metadata file in R, but this seems like an extra step and an extra opportunity to introduce errors!)

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