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A forward and Backward Digit Span test for Working Memory The test adapts to participnts' answers and a score is calculated following Woods et al. (2012)

In this task participants are required to memorise and recall number series in order. Participants start out with three 3-digit sequences. If participants correctly recall 2 out of 3 three sequences, they progress to 4-digit sequence trials and so on. If participants respond incorrectly on 2/3 trials the experiment terminantes. This experiment is based on the original digit span experiment by Jacobs (1887).

This is an update to Topor’s implementation of the PST by Frank, Woroch and Curran (2005), made to run online. See https://doi.org/10.1016/j.brs.2022.02.009 for details of other modifications made for offline version and carried through to here.

Recognize the image

In this task participants are required to sort the presented cards based on a rule. The rule is unknown to the participants, however they receive feedback whether their answer was correct. The rule changes after certain amount of trials. This experiment is based on Grant & Berg (1948) experiment.

add / remove stimuli as accuracy increases / decreases

In this task participants are required to memorise and recall number series in order. Participants start out with three 3-digit sequences. If participants correctly recall 2 out of 3 three sequences, they progress to 4-digit sequence trials and so on. If participants respond incorrectly on 2/3 trials the experiment terminantes. This experiment is based on the original digit span experiment by Jacobs (1887).

The aim of this study is to determine whether likeability ratings of novel food images will decrease after these images are paired together with obese, normal, thin body shapes. If you participate, you will be asked to rate a number of novel food stimuli on how much you think you would like them on a Likert scale from -100 (extremely dislike) to +100 (extremely like). You will then be shown these novel food items again, but each one will also be immediately be followed by an image of different body types (obese, normal, thin). An extinction phase will also be conducted where certain food and body image pairings will not be shown, and the food image will be shown without a body image being shown immediately after. Following these conditioning and extinction phases, you will then be asked to rate both the novel food images and body images using the same Likert scale which will show if your likeability rates differ after viewing the food images being paired with different body types.

In this task participants are required to judge which line is longer than the other. This experiment is based on illusion devised by Franz Carl Müller-Lyer in 1889.

Tower of London

Based on a Psychology experiment written for Kate Wilmut in 2017.

Basic JND orientation discrimination demo

Please cite: Bölling, L., 2022-03-10. Dropdown-Field-Snippet for Online and Offline Usage in PsychoPy-Builder [Computer software]. Pavlovia. https://gitlab.pavlovia.org/luke.boelling/dropdownonlineoffline.