Indeed, psychologists generated this hypothesis and tried to make a survey not biased against prostitutes. Their survey found no imbalance.
But it cannot both be true that this study and the lie detector study both explain the discrepancy. It could be that both effects are true, but there are unaccounted biases in the other direction (such as age). The fact that both studies claim the same size effect, the size of the error that they are trying to explain, makes me highly suspicious of the claimed magnitudes. The psychologists got the answers they wanted. How sketchy is this research? Par for the psychology course.
Indeed, psychologists generated this hypothesis and tried to make a survey not biased against prostitutes. Their survey found no imbalance.
But it cannot both be true that this study and the lie detector study both explain the discrepancy. It could be that both effects are true, but there are unaccounted biases in the other direction (such as age). The fact that both studies claim the same size effect, the size of the error that they are trying to explain, makes me highly suspicious of the claimed magnitudes. The psychologists got the answers they wanted. How sketchy is this research? Par for the psychology course.