Need for cognition and thought-induced attitude polarization: Examining possible demand characteristics

Two sets of research demonstrate that individual differences in need for cognition moderate the effect of thought on attitude polarization.  However, one set indicates that a low need for cognition is associated with greater thought-induced attitude polarization, whereas the other set indicates that a high need for cognition is associated with greater thought-induced attitude polarization.  In the present study we provide evidence that the former, but not the latter, pattern of results may be due to demand characteristics.