Asks the model if the value at *index* is valid

        See :meth:`isFieldValid<sparkle.stim.auto_parameter_model.AutoParameterModel.isFieldValid>`

def checkValidCell(self, index):
        """Asks the model if the value at *index* is valid

        See :meth:`isFieldValid<sparkle.stim.auto_parameter_model.AutoParameterModel.isFieldValid>`
        """
        col = index.column()
        row = index.row()
        return self.model.isFieldValid(row, self._headers[index.column()])