Hi all,

I am new to oTree and have been playing around to try to see if I can only show certain pages/text to certain participants. I have been attempting to use the def is_displayed function, but it appears to not be working properly when I try to show a certain page to multiple participants. For example, in my code, I wanted to show the nudge page to players 2 and 4 but it is only showing to P4. Also, I wanted to show the instruction_optimal page to players 3 and 4 but it is only showing to P4. And, I wanted to show the instruction_standard page to players 1 and 2, but it is only showing to P2. I assume this has something to do with otree not recognising the first def is_displayed function, but can someone please help to explain why, or how I can fix it? I have attached my _init_.py file if that helps.

Thanks,
JS

Hi,

You’re right: There should be a single def is_displayed(player: Player), not multiple ones. 

Try replacing

    @staticmethod
    def is_displayed(player: Player):
        return player.id_in_group == 1

    @staticmethod
    def is_displayed(player: Player):
        return player.id_in_group == 2

by

    @staticmethod
    def is_displayed(player: Player):
        return player.id_in_group in [1, 2]

and so on.

Best,

Holger

Thanks Holger!!