When you get a surprisingly low price on a product do you assume that you got a really good deal or that you bought a low-quality product? Research indicates that you are more likely to associate low price and low quality if someone else makes the purchase rather than yourself (Yan & Sengupta, 2011). In a similar study, n = 16 participants were asked to rate the quality of low-priced items under two scenarios: purchased by a friend or purchased yourself. The results produced a mean difference of MD =2.6 and SS = 135, with self-purchases rated higher. a. Is the judged quality of objects significantly different for self-purchases than for purchases made by others? Use a two-tailed test with alpha = .05. b. Compute Cohen’s d to measure the size of the treatment effe
When you get a surprisingly low price on a product do you assume that you got a really good deal or that you bought a low-quality product? Research indicates that you are more likely to associate low price and low quality if someone else makes the purchase rather than yourself (Yan & Sengupta, 2011). In a similar study, n = 16 participants were asked to rate the quality of low-priced items under two scenarios: purchased by a friend or purchased yourself. The results produced a mean difference of MD =2.6 and SS = 135, with self-purchases rated higher.
a. Is the judged quality of objects significantly different for self-purchases than for purchases made by others? Use a two-tailed test with alpha = .05.
b. Compute Cohen’s d to measure the size of the treatment effect.
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