A researcher is conducting a study on the effectiveness of a new therapy for treating anxiety. The researcher wants to ensure that the therapy is truly effective and not just a placebo effect. What type of study design should the researcher use? A) Double-blind study B) Single-blind study C) Open-label study D) Placebo-controlled study
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This type of study involves comparing the effects of the new therapy to a placebo (inactive substance) to determine if the therapy is truly effective or if the effects are due to the placebo effect. Show more…
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A psychology researcher is conducting a study on the impact of three different therapeutic techniques on reducing anxiety symptoms. The research subjects are divided into three groups, with each group using a different therapy method. Each subject's anxiety is measured using the Beck Anxiety Inventory (BAI) before and after therapy, with a lower BAI score indicating less anxiety. The change in scores (post-therapy score subtracted from pre-therapy score) are as follows: Cognitive Behavioral Therapy Group (Group 1): [12, 15, 9, 17, 14, 18, 13, 14, 20, 16] Psychodynamic Therapy Group (Group 2): [11, 13, 10, 9, 8, 14, 12, 11, 9, 10] Mindfulness-Based Therapy Group (Group 3): [14, 17, 13, 14, 12, 16, 15, 14, 16, 17] The researcher suspects that Cognitive Behavioral Therapy (CBT) is more effective in reducing anxiety compared to the other two methods. a. Conduct a one-way ANOVA test to determine if there are significant differences between the three groups. Show your work step by step.
Dominador T.
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