In one study, young children under stress were shown to actually report fewer symptoms of anxiety and depression than one would expect. However, their scores on a Lie scale (a measure of the tendency to give socially desirable answers) were higher than expected. The population mean on the Lie scale is known to be 3.87. For a sample of 36 children under stress, researchers found a sample mean of 4.39 with a standard deviation of 2.61. From the data, can you conclude that children under stress tend to score higher on the Lie scale than the general population? Conduct a one-sample t-test and report the following: Find the value of the t-statistic using RStudio. Based on the t-value calculated in part (a), what proportion of samples of size 36 from the general population would have means this high or higher? What does your answer to part (b) tell you? Should we reject the null hypothesis? Is there evidence that children under stress score higher on the Lie school than the general population?
In one study, young children under stress were shown to actually report fewer symptoms of anxiety and depression than one would expect. However, their scores on a Lie scale (a measure of the tendency to give socially desirable answers) were higher than expected. The population mean on the Lie scale is known to be 3.87. For a sample of 36 children under stress, researchers found a sample mean of 4.39 with a standard deviation of 2.61. From the data, can you conclude that children under stress tend to score higher on the Lie scale than the general population? Conduct a one-sample t-test and report the following:
Find the value of the t-statistic using RStudio.
Based on the t-value calculated in part (a), what proportion of
What does your answer to part (b) tell you? Should we reject the null hypothesis? Is there evidence that children under stress score higher on the Lie school than the general population?
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