Variability in Therapy Techniques and Anxiety Outcomes

Very Hard Unit 1: Scientific Foundations Statistical Analysis

Researchers conducted a study to compare the effectiveness of two different therapy techniques for treating anxiety. After administering each treatment to two distinct groups of participants, they measured the anxiety levels in each group using a standardized anxiety inventory. The results yielded a mean anxiety score of 20 for the cognitive behavioral therapy (CBT) group and a mean score of 30 for the mindfulness-based therapy (MBT) group. To better understand the data, the researchers calculated the standard deviation for both groups and found that the standard deviation for the CBT group was 5 while the standard deviation for the MBT group was 10.

Based on this data, what can be inferred about the variability and inconsistency in anxiety levels between the two therapy techniques?

The CBT group shows more variability in anxiety levels compared to the MBT group.

The CBT group has a higher mean anxiety score indicating more severe anxiety.

The MBT group shows greater variability in anxiety levels compared to the CBT group.

There is no significant difference in the effectiveness of the two therapies.

Both therapy techniques result in similar levels of anxiety as evidenced by their means.

Hint

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