“…A motivation manipulation can be achieved either through instructions (see, e.g., those employed originally by Gustafson & Orne, 1963, where participants are informed that only people with high intelligence and self-control can avoid detection), or by promising an incentive for the desirable outcome (e.g., Bradley & Warfield, 1984) or a punishment for an undesirable outcome (e.g., Lykken, 1959). This factor was examined by many previous studies (e.g., Gustafson & Orne, 1963, 1965aLieblich, Naftali, Shmueli, & Kugelmass, 1974). Although the results of these studies were not always consistent, the previous meta-analysis (Ben-Shakhar & Elaad, 2003) revealed that, across studies, motivation to avoid detection was associated with significantly larger SCR effect size (d = 1.84) as compared with conditions where no motivational instructions were given and no incentive was promised (d = 1.36).…”