QUESTION 12 A researcher conducts some research in which they identify a signifi

Question

QUESTION 12

A researcher conducts some research in which they identify a significant positive correlation (r = .42) between the number of children a person has and their life satisfaction. Which of the following is it inappropriate to conclude from this research?

That having children makes people more satisfied with their life.

That someone who has children is likely to be happier than someone who doesn't.

That the consequences of having children are unclear.

That it is possible to predict someone's life happiness partly on the basis of the number of children they have.

1 points   

QUESTION 13

A researcher is wishing to undertake a study of the relationship between a specific type of analgesia and levels of pain experienced by sufferers of rheumatoid arthritis. It is believed that level of physical activity will influence both of these variables and so it has been decided that the use of partial correlations will allow for this in the research. On which of the following should a correlation be performed?

Type of analgesia used and level of pain experienced, controlling for level of physical activity

Level of pain experienced and level of physical activity, controlling for type of analgesia used

Type of analgesia used and physical activity level, controlling for level of pain experienced

None of the above

1 points   

QUESTION 14

In order for accurate measures of the linear relationship between two variables to be achieved, what type of data are required if using Pearson’s correlation coefficient?

Interval

Nominal

Ordinal

Categorical

That having children makes people more satisfied with their life.

That someone who has children is likely to be happier than someone who doesn't.

That the consequences of having children are unclear.

That it is possible to predict someone's life happiness partly on the basis of the number of children they have.

Explanation / Answer

Q12)

A researcher conducts some research in which they identify a significant positive correlation (r= .42) between the number of children a person has and their life satisfaction. The statements a,b,d are relating with number of children and life satisfaction therefore inappropriate stament is c . That the consequence of having the children is are unclear.

Q13)

A researcher is washing to undertake a study of the relationship between a specific type of analgesia and levels of pain experienced by duffer of rheumatoid arthritis . the level of physical activity will influence both of these variables and so it has been decided that the use of partial correlation Will allows in this research   partial correlation is used in a)

Type of analgesia used and level of pain experienced controlling for level of physical activity.

Q14)

To measure the linear relationship between two variables we require quantative variable's hence the ordinal level of measurements is useful.

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