Michael's copy of Derek's copy of Calculate Pearson correlation coefficient

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Michael Proudman 6 years, 5 months ago

Created this as a copy of Derek's copy of Calculate Pearson correlation coefficient.

Name	Status	Author	Last Modified
Calculate Pearson correlation coefficient	draft	Newcastle University Mathematics and Statistics	20/11/2019 14:50
Derek's copy of Calculate Pearson correlation coefficient	draft	Derek Hunt	29/10/2018 14:29
Michael's copy of Derek's copy of Calculate Pearson correlation coefficient	draft	Michael Proudman	07/12/2021 09:49

Question statement

Please print and refer to the coding sheet if you wish.

To answer each of the questions, think about how it applies to the caregiver interacting with this specific child.
Code based on initial reactions / general impressions; don’t over think any of the items; code quickly.
Use all available information to form a reaction including nonverbals
Try to use the entire 5-point scale, do not leave items blank (give each item your best guess)
Watch five minutes only (if it goes on beyond five minutes, discontinue)

Couple	$\var{obj[0]}$	$\var{obj[1]}$	$\var{obj[2]}$	$\var{obj[3]}$	$\var{obj[4]}$	$\var{obj[5]}$	$\var{obj[6]}$	$\var{obj[7]}$	$\var{obj[8]}$	$\var{obj[9]}$
Wife $(X)$	$\var{r1[0]}$	$\var{r1[1]}$	$\var{r1[2]}$	$\var{r1[3]}$	$\var{r1[4]}$	$\var{r1[5]}$	$\var{r1[6]}$	$\var{r1[7]}$	$\var{r1[8]}$	$\var{r1[9]}$
Husband $(Y)$	$\var{r2[0]}$	$\var{r2[1]}$	$\var{r2[2]}$	$\var{r2[3]}$	$\var{r2[4]}$	$\var{r2[5]}$	$\var{r2[6]}$	$\var{r2[7]}$	$\var{r2[8]}$	$\var{r2[9]}$

In this exercise you will find the Pearson correlation coefficent for the above paired data and comment on the significance of the calculated correlation.

The null hypothesis you are testing is:

$H_0$ : There is no association between the attitudes of wives and husbands.

Give any introductory information the student needs.

			Name	Type	Generated Value

aspcoef	number	0.479
spcoef	number	0.479
vs	list	[ 0, 0, 0, 0, 1 ]
sxy	number	1253
spxy	number	161
tol	number	0.001
ssq	list	[ 1272, 1599 ]
corrcoef	number	0.524
ssd	number	86
rr2	list	List of 10 items
rr1	list	List of 10 items
r1	list	List of 10 items
tsqovern	list	[ 1081.6, 1102.5 ]
obj	list	List of 10 items
d	list	List of 10 items
r2	list	List of 10 items
ss	list	[ 190.4, 496.5 ]
k	integer	3
m	integer	20
n	integer	10
t	list	[ 104, 105 ]
v	list	[ 0, 0, 0, 0, 1 ]

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
abs(spcoef)

JME function reference

Description

Describe what this variable represents, and list any assumptions made about its value.

Can an exam override the value of this variable?

Generated value: `number`

0.479

← Depends on:

This variable doesn't seem to be used anywhere.

Parts

Part a) Gap-fill
1. Gap Gap 0. Number entry
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2. Gap Gap 1. Number entry
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3. Gap Gap 2. Number entry
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4. Gap Gap 3. Number entry
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5. Gap Gap 4. Number entry
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6. Gap Gap 5. Number entry
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Part b) Gap-fill
1. Gap Gap 0. Number entry
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2. Gap Gap 1. Number entry
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3. Gap Gap 2. Number entry
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4. Gap Gap 3. Number entry
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5. Gap Gap 4. Choose one from a list
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Gap-fill

Ask the student a question, and give any hints about how they should answer this part.

Wife $(X)$	$\sum x=\;$Gap 0.	$\sum x^2=\;$Gap 1.
Husband $(Y)$	$\sum y=\;$Gap 2.	$\sum y^2=\;$Gap 3.

Also find $\sum xy=\;$Gap 4. and then:

$\displaystyle SSX = \;$Gap 5.

$\displaystyle SSY = \;$Gap 6.

$\displaystyle SPXY = \;$Gap 7.

Hence calculate the correlation coefficient $r$:

$r=\;$Gap 8.

Advice

The answers to all parts are given on revealing.

Give a worked solution to the whole question.

Use this tab to check that this question works as expected.

There was an error which means the tests can't run:

Part	Test	Passed?
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Choose one from a list
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This question is not used in any exams.

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Michael's copy of Derek's copy of Calculate Pearson correlation coefficient

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Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

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Checkpoint description

Michael Proudman 6 years, 5 months ago

Error in variable testing condition

Error

Warning

Generated value: `number`

Parts

Gap-fill

Loading...

Error

Michael's copy of Derek's copy of Calculate Pearson correlation coefficient

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Michael Proudman 6 years, 5 months ago

Error in variable testing condition

Error

Warning

Generated value: number

Parts

Gap-fill

Generated value: `number`