The spotlight effect refers to overestimating the extent to which others notice your appearance or behavior, especially when you commit a social faux pas. Effectively, you feel as if you are suddenly standing in a spotlight with everyone looking. In one demonstration of this phenomenon, Gilovich, Medvec, and Savitsky (2000) asked college students to put on a Barry Manilow T-shirt that fellow students had previously judged to be embarrassing. The participants were then led into a room in which other students were already participating in an experiment. Later, each participant was asked to estimate how many people in the room had noticed the shirt. The individuals who were in the room were also asked whether they noticed the shirt. In the study, the participants significantly overestimated the actual number of people who had noticed. In a similar study using a sample of n = 16 participants, the individuals who wore the shirt produced an average estimate of M = 8.3 with SS=540. Do the data support the spotlight effect? In other words, do people that make a social faux pas report a significantly different number of people looking at them than actually look at them? Test the null hypothesis that the true mean is μ = 4.6 at α = .05. Additionally, calculate a 90% confidence interval around your mean.
The spotlight effect refers to overestimating the extent to which others notice your appearance or behavior, especially when you commit a social faux pas. Effectively, you feel as if you are suddenly standing in a spotlight with everyone looking. In one demonstration of this phenomenon, Gilovich, Medvec, and Savitsky (2000) asked college students to put on a Barry Manilow T-shirt that fellow students had previously judged to be embarrassing. The participants were then led into a room in which other students were already participating in an experiment. Later, each participant was asked to estimate how many people in the room had noticed the shirt. The individuals who were in the room were also asked whether they noticed the shirt. In the study, the participants significantly overestimated the actual number of people who had noticed. In a similar study using a sample of n = 16 participants, the individuals who wore the shirt produced an average estimate of M = 8.3 with SS=540. Do the data support the spotlight effect? In other words, do people that make a social faux pas report a significantly different number of people looking at them than actually look at them? Test the null hypothesis that the true mean is μ = 4.6 at α = .05. Additionally, calculate a 90% confidence interval around your mean.
H0:
H1:
df:
Critical value:
(pooled) variance
(estimated) standard error:
Calculated test statistic:
Decision:
Interpretation:
Confidence interval:
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