Use the following scenario to answer the question: A
clinical psychologist wants to compare the effectiveness of two different types
of therapy for reducing anxiety: Cognitive Behavioural Therapy (CBT) and
Mindfulness-Based Stress Reduction (MBSR) .

She recruits 20
participants diagnosed with generalised anxiety disorder, 10 to undergo CBT and
10 to undergo MBSR. After 8 weeks of
treatment, all participants completed the Beck Anxiety Inventory (BAI) ,
which yields a numerical score indicating their level of anxiety.
The researcher wants to establish whether a
significant difference exists between the two groups. He decides to do
statistical significance testing to a level of significance of α = 0.05 . Which
of the following is the most appropriate way to express the hypotheses to be
tested?

Question

Use the following scenario to answer the question:  A
clinical psychologist wants to compare the effectiveness of two different types
of therapy for reducing anxiety:  Cognitive Behavioural Therapy (CBT)  and
 Mindfulness-Based Stress Reduction (MBSR) .

She recruits 20
participants diagnosed with generalised anxiety disorder, 10 to undergo CBT and
10 to undergo MBSR.  After 8 weeks of
treatment, all participants completed the  Beck Anxiety Inventory (BAI) ,
which yields a numerical score indicating their level of anxiety. 
    The researcher wants to establish whether a
significant difference exists between the two groups. He decides to do
statistical significance testing to a level of significance of  α = 0.05 .  Which
of the following is the most appropriate way to express the hypotheses to be
tested?

Answer

H 0 : µ 1  = µ 2            H 1 : µ 1 
> µ 2

Answer

H 0 : µ 1  = µ 2            H 1 : µ 1  ≠
µ 2

Answer

H 0 :  x̄   1 =  x̄   2           H 1 :    x̄   1 <  x̄   2

Answer

H 0 :  ρ  = 0          H 1 :  ρ  ≠ 0

Group 1	CBT Group (BAI Score)	Group2	MBSR Group (BAI Score)
1	18	1	22
2	15	2	25
3	20	3	19
4	17	4	24
5	16	5	21
6	14	6	23
7	19	7	20
8	13	8	26
9	15	9	22
10	16	10	24

Crowdly

Use the following scenario to answer the question: A clinical psychologist wan...

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