Ugrás a tartalomhoz

## SOCIAL STATISTICS

Renáta Németh, Dávid Simon

ELTE

The direction of the relationship

## The direction of the relationship

The question ’which way does the relationship point’ is only meaningful for ordinal variables.

Positive relationship: if Variable A increases, Variable B increases too.

Negative relationship: if Variable A increases, Variable B decreases.

E.g..:  the distribution of the number of friends by age group (From: Társadalmi helyzetkép, 2002, KSH)

 AGE GROUP NUMBER OF FRIENDS 1-2 3-4 4+ Összesen 15-29 45,9% 28,6% 25,5% 100% 30-39 57,0% 25,6% 17,4% 100% 40-49 61,0% 25,9% 13,1% 100% 50-59 58,5% 26,2% 15,3% 100% 60-75 62,0% 24,6% 13,4% 100%

Interpret the data. Which way does the relationship point?

It’s negative: the older one is, the fewer friends one tends to have.

Note:

This does not necessarily mean ’the number of friends decrease as we get older’. The same data can also mean those who are older now made fewer friends when they were younger than today’s young people and the difference was brought about by social and cultural differences between young people then and now. (A possible reason: young people today are less informal in their everyday behaviour so it might be easier to make friends.)