Checking and rechecking if the door is lock or is the window is closed is called checking behaviour. For people suffering from obsessive compulsive disorder (OCD) this check and recheck can become debilitating.

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Q1. Checking and rechecking if the door is lock or is the window is closed is called checking behaviour. For people suffering from obsessive compulsive disorder (OCD) this check and recheck can become debilitating. One theory is that this behaviour is caused by both the mood the person is in and the rule they have set to determine when to stop (Field, Miles & Field, 2012).  

Davey, Startup, Zara, MacDonald, and Field (2003, as cited in Field et al., 2012) tested this hypothesis by randomly assigning participants to one of three groups in which they were induced into either a positive, negative or neutral mood. Participants were then asked to generate as many items that they would need to check before they left on a holiday.  Participants were also instructed to use one of two stop rules. Half of the participant (randomly assigned) were told to generate as many items to check as they could (‘as many as you can’ – stop rule), the remaining half of the participants were instructed to continue the task as long as they felt like it (‘feel like continuing’ – stop rule).  The researchers recorded the number of checks that each participant reported.

           

The following are the results were obtained from analyzing the Davey et al., (2003) data.  Using the information provided write a proper APA report describing the findings. Include in your write-up a brief interpretation of the graph provided as well as all necessary APA tables.

 

References

Davey, G. C. L., Startup, H. M., Zara, A., MacDonald, C.B., & Field, A. P. (2003). Perseveration of checking thoughts and mood- as-input hypothesis. Journal of Behavior Therapy & Experimental Psychiatry, 34, 141–160.

Field, A., Miles, J. & Field, Z. (2012). Discovering Statistics Using R, London, England: Sage Publications Ltd.  

 

Descriptive Statistics

Mean

St. Deviation

Valid N

Minimum

Maximum

Checks

10.37

5.45

60

3.00

31.00

 

 

 

 

 

 

Frequencies

Frequencies ( Mood )

Value

# of Cases

%

Cumulative %

1

Negative

20

33.30

33.30

2

Positive

20

33.30

66.70

3

Neutral

20

33.30

100.00

 

Case Summary ( Mood )

Valid

Missing

Total

% Missing

1

60.00

0.00

60.00

0.00


 

Frequencies ( Stop_Rule )

Value

# of Cases

%

Cumulative %

1

As many

30

50.00

50.00

2

Feel Like

30

50.00

100.00

 

Case Summary ( Stop_Rule )

Valid

Missing

Total

% Missing

1

60.00

0.00

60.00

0.00

 

 

 leveneTest(Davey2020SUAss3$Checks,interaction(Davey2020SUAss3$Mood, Davey2020SUAss3$Stop_Rule), center = median)

Levene's Test for Homogeneity of Variance (center = median)

      Df F value Pr(>F)

group  5  1.7291 0.1436

      54              

 

> by(Davey2020SUAss3$Checks,interaction(Davey2020SUAss3$Mood, Davey2020SUAss3$Stop_Rule),shapiro.test)

interaction(Davey2020SUAss3$Mood, Davey2020SUAss3$Stop_Rule): Negative.As many


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