visual analogue scale psychopy

I'm developing a metacognition experiment in PsychoPy (v. 1.90.1) and I need a visual analogue scale to measure confidence. However, I can't find a way to remove the numeric values (0 and 1) from the extremities of the Psychopy VAS. Is there any way to hide them?

I need the word labels ("Not at all confident", "Extremely confident") but I would also like to have the answers recorded on a 0-100 scale (or an equivalent 0-1) as the analogue scale does (so switching to categorical wouldn't do).

Any suggestion?

Thanks in advance.

Sonia

Solution

Take a look at the documentation, particularly labels and scale. This is one solution:

# Set up window and scale
from psychopy import visual
win = visual.Window()
scale = visual.RatingScale(win, 
    labels=['Not at all confident', 'Extremely confident'],   # End points
    scale=None,  # Suppress default
    low=1, high=100, tickHeight=0)

# Show scale
while scale.noResponse:
    scale.draw()
    win.flip()

# Show response
print scale.getRating(), scale.getRT()