BIOL 1010 Lecture Notes - Clinical Formulation, Bulimia Nervosa, Problem Gambling

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Published on 30 Jan 2013
Canadian ex is a case of preferential bestiality (zoophilia) reported. A 54 yr old white
male was serving a 5 yr prison sentence for cruelty to animals a cruelty that had been
exhibited in sexual activity with horses
Case study is excellent way of examining the beh of a single indiv in great detail and
generating hypotheses that can later be evaluated by controlled research
Useful in clinical settings where focus is on one person. A case study may however not
reveal principles characteristic of ppl in general and is unable to provide satisfactory
evidence concerning cause effect relationships
Epidemiological research
Epidemiology is the study of the frequency and distribution of a disordered in a
Data re gathered about the rates of a disorder and its possible correlates in a large
samples or population
Epediologioical research focuses on determining three features of a disorder:
1) prevalence- the proportion of a population that has the disorder at a given point or
period fo time
2) incidence- the # of new cases of the disorder that occur in some period of time
usually a year
3) risk factors- conditions or variables that if present increase the likelihood of
developing the disorder
knowing this stuff is imp for planning health care facilities, services, etc
depression is twice as common in women than men. Thus gender is a risk factor and
this knowledge led to a theory of depression that suggests its due to a style of coping
with stress that is more common in women than men
The correlational method
correlational method - establishes whether there is a relationship between or among
two or more variables
it is often employed in epidemiological research
in correlatioanl research the variables being studied are measured as they exits in
this feature distinguishes the method from experimental research in which variables are
actually manipulated and controlled by the researcher
ex: national study of Canadian preschoolers showed that behaviour problems were
higher among kids from less affluent neighbourhoods
Measuring correlation
1st thing in determining a correlation is to obtain parts of observations of the variables in
question. Ex: height and weight
Then the strength of the relationship between the two sets of observations can be
calculated to determine the correlation coefficient denoted by the symbol r. the
statistic may take any value between 1.00 and +1.00 and it measures both the
magnitude and the direction of a relationship
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