43  Formative PsychoPy quiz

🏠 Self-study

This is a formative PsychoPy quiz about content covered in Lab 7. You might find it helpful to return to these questions when revising for the January exam.

If the Keyboard component is named ‘response’ and ‘Store correct’ is ticked, what is stored in the variable ‘response.corr’?

A value of 1 for correct responses and 0 for incorrect responses.The key that the participant pressed.The reaction time of the participant’s response.A text string saying “correct” or “incorrect”.

The correct answer is that response.corr stores a value of 1 for correct responses and 0 for incorrect responses. This is PsychoPy’s automatic coding system for response accuracy, which can then be used to provide appropriate feedback to participants.

In a PsychoPy feedback routine, what is the essential component ordering requirement?

The Code component must be placed above the Text component.The components must be arranged side by side.The Text component must be placed above the Code component.The components can be placed in any order.

The correct answer is that the Code component must be placed above the Text component. This ordering is crucial because PsychoPy executes components from top to bottom, and the Code component needs to determine the feedback message before the Text component can display it.

What are the key requirements for implementing accuracy feedback in PsychoPy? Select all that apply.

A Keyboard component that stores response accuracy.A Code component to determine the appropriate feedback message.A Text component with a Text field using a variable and “set every repeat”.An input file that defines the correct response.

All of these elements are required for implementing proper accuracy feedback in PsychoPy. The Keyboard component records the response accuracy, the Code component processes this information to determine the appropriate feedback, the Text component displays the required feedback, and the input file tells PsychoPy what the correct answer is.

If you want to present participants with ‘Too slow’ feedback, which of the following statements are correct? Select all that apply.

Your code component must distinguish between incorrect answers with and without a key press.Your trial routine must have a maximum duration.The feedback routine must require a key press.The Python code determining the feedback message must be placed in the ‘Begin routine’ tab.

Statements 1, 2 and 4 are correct. The feedback routine does not require a key press (it can simply be presented for a pre-determined length). The trial routine on the other hand does of course need some form of response.