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In the following 3 tables, are the mean scores for individuals in the high and low Need for Cognition groups significantly different? 1. Hit Rate

In the following 3 tables, are the mean scores for individuals in the high and low Need for Cognition groups significantly different?

1. Hit Rate Across all Studied Words

Mean Standard Deviation
HIGH .68 .16
LOW .64 .16
  • Independent-samples T-test
  • degrees of freedom = 441
  • t-statistic =-2.62
  • p-value = .009
  • Measure of effect size: Cohen's d = .25

2. False Alarm Rate Across Recall Trial Lures

Mean Standard Deviation
HIGH .73 .24
LOW .70 .22
  • Independent-samples T-test
  • degrees of freedom = 441
  • t-statistic =-1.31
  • p-value = .192
  • Measure of effect size: Cohen's d = .13

3. Proportion Of Remember Judgments for Recall Trial Lures

Mean Standard Deviation
HIGH .63 .31
LOW .60 .31
  • Independent-samples T-test
  • degrees of freedom = 438
  • t-statistic =-1.04
  • p-value = .301
  • Measure of effect size: Cohen's d = .10

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