A Problem-Based Learning Approach to Teaching Biostatistics

Figures & data

Table 1. Statistical Methods Used in 1,062 Articles Published in Six Veterinary Medical Journals During 1992

Category of Statistical Method	Number of Articles	Percent of Articles
None or descriptive	541	51.0%
ANOVA	249	23.0%
t tests	168	16.0%
Contingency tables	118	11.0%
Nonparametric tests	101	9.5%
Simple linear regression	35	3.0%
Multiple regression	34	3.0%
Epidemiologic statistics	27	2.5%
Pearson correlation	16	1.5%
Confidence interval	13	1.2%
Survival analysis	11	1.0%
Nonparametric correlation	6	0.6%
Miscellaneous	15	1.4%
Not specified	10	1.0%

NOTE: Percentages do not add to 100% because more than one category of methods was used in some articles.

Source: Hammer and Buffington (1994)

Reproduced by permission of the Journal of the American Veterinary Medical Association.

Table 2. Point Scores Assigned to Limb Injuries of Furbearers Captured in Foothold Traps

Description of Injury	Points Scored
Apparently normal	0
Edematous swelling and hemorrhage	5
Cutaneous laceration < 2 cm	5
Cutaneous laceration > 2 cm	10
Tendon or ligament laceration	20
Joint subluxation	30
Joint luxation	50
Compression fracture above or below carpus	30
Simple fracture at or below carpus or tarsus	50
Compound fracture at or below carpus or tarsus	75
Simple fracture above carpus or tarsus	100
Compound fracture above carpus or tarsus	200
Amputation of 1 digit	50
Amputation of 2 digits	100
Amputation of 3 digits	150
Amputation of 4-5 digits	200
Amputation above the digits	400

Source: Olsen, Linscombe, Wright, and Holmes (1988) Reproduced by permission of the Wildlife Society Bulletin.

Table 3. Frequency Distribution of Injury Scores for Two Types of Foothold Traps

	Number of Legs
Injury Score	Modified Northwoods	Modified Soft-Catch
5	1	4
10	6	4
15	2	1
30	1	0
65	0	1

Hammer, A. S., and Buffington, C. A. (1994), “Survey of Statistical Methods Used in the Veterinary Medical Literature,” Journal of the American Veterinary Medical Association, 205(2), 344–345.

 PubMed Web of Science ®Google Scholar

Olsen, G. H., Linscombe, R. G., Wright, V. L., and Holmes, R. A. (1988), “Reducing Injuries to Terrestrial Furbearers by Using Padded Foothold Traps,” Wildlife Society Bulletin, 16, 303–307.

 Web of Science ®Google Scholar