Menu
Home
Log in / Register
 
Home arrow Environment arrow Research Methods in Anthropology: Qualitative and Quantitative Approaches
Source

SPEARMAN'S r

Table 21.12 shows some data collected by Allyn Stearman (1989:224). She measured the amount of game meat taken, over 56 days, by 16 Yuqui hunters in the Bolivian Amazon.

These data are arranged in rank order of meat taken. So, Alejandro is the winner, with 226 kilos of meat during the 56-day observation period. Lorenzo and Jonatan are tied for

Table 21.12 Ranking of Yuqui Hunters by Game Taken

Name

Kilos of meat

Kilos offish

Alejandro

226.00

53.75

Jaime

185.50

101.00

Leonardo

152.50

8.50

Humberto

144.75

120.50

Daniel

78.00

119.50

Joel

74.50

34.25

Jorge

59.50

23.00

Timoteo

51.00

1.50

Tomas

51.00

123.80

Lucas

46.00

107.50

Guillermo

45.75

199.25

Victor

29.50

38.25

Manuel

14.50

28.50

Benjamin

10.00

128.00

Jonatan

0.00

198.00

Lorenzo

0.00

279.00

SOURCE: A. M. Stearman, ''Yuqui Foragers in the Bolivian Amazon: Subsistence Strategies, Prestige and Leadership in an Acculturating Society,'' Journal of Anthropological Research, Vol. 45, pp. 219-44. Reproduced by permission of the Journal of AnthropologicalResearch © 1989.

last. We can use Spearman’s r to test the extent to which a hunter’s take of fish matches his take of meat. Just looking at the data, we suspect the correlation is negative. That is, it appears that hunters who take a lot of meat are not focusing on fish and vice versa. Here is the formula for Spearman’s r:

where d is the difference between the ranks on all pairs of objects. Table 21.13 shows the computation of d2 for the data on these hunters.

For these hunters, at least, there is a moderate negative correlation between their success in hunting meat and their success in hunting fish.

 
Source
Found a mistake? Please highlight the word and press Shift + Enter  
< Prev   CONTENTS   Next >
 
Subjects
Accounting
Business & Finance
Communication
Computer Science
Economics
Education
Engineering
Environment
Geography
Health
History
Language & Literature
Law
Management
Marketing
Mathematics
Political science
Philosophy
Psychology
Religion
Sociology
Travel