A method to assign participants using a single link to a number of your experiments or experiment versions. This helps with random sampling across experiments.
Annotation
A data format where one, two or three stimuli are associated with a label, rating, category, coordinate or other piece of data.
Batch
a group of slots for participants to take part in a version of your experiment. A batch has options to customize the participants' experience. You have to create a batch for external participants to take part in your experiment.
Entry URL
the internet address or "link" that you will send to your participants or recruitment platform.
Exit URL
the internet address or "link" that participants can follow after they finish their experiment on meadows; this could lead back to the recruitment service or to another stage of your experiment.
Experiment
a set of tasks that is completed as a whole by your participants. Note that in some cases you will need multiple experiments in your project; such as for testing a sub section, or when you have two conditions that you want to test on separate groups of participants.
Experiment version
a fixed, unchangeable copy of your experiment. Participants can only take part in experiment versions; this is so that you can change the design of the overall experiment without affecting participations to a specific version.
Fixation
A simple cross or star displayed at the center of the screen for the participant to focus their gaze on.
Participation
a single session of an experiment for a participant. In principle a participant (person) can have multiple participations (sessions) in the same experiment.
Preview
A special mode to take part in a task or whole experiment that you have designed yourself; the data is overwritten the next time you preview the same experiment.
Slot
a single prepared session or "participation" to be taken up by one of your participants. Note that you often require more slots than you want participants as some will abandon their participation.
Stimulus
a single image, video, sound or text segment for which you want to gather a response from your participant.
Stimulus set
a group of stimuli that you can use in a task. This can either be a pre-existing openly available set or one that you compile yourself from your meadows dashboard.
Task
One step for participants in your experiment, you can also think of this as a page or screen. The same type of task can be repeated multiple times in an experiment.
Time out
when the participant exceeds the maximum time you have alotted for a participation in a given batch.
Trial
a single repetition of a given rating or challenge asked from the participant, associated with one, two, or several stimuli. Most tasks consist of a number of trials.