Statement of the Problem
The purpose of the present study was to determine whether there was a measurable
change in personality from the time one enters to the time one exits medical school. Potential
changes were viewed from an objective perspective through the use of a reliable and valid
psychological instrument already in widespread use. Additionally, such changes were examined
from a subjective perspective. That is, the participants’ perception of how they viewed
themselves at entrance to and exit from medical school, including their perception of how others
would view them at exit from medical school, were examined.
Null Hypotheses
The null hypotheses for the present study are as follows:
1. There is no change in personality as measured by the objective personality instrument
(the 16 Personality Factor Questionnaire, Fifth Edition [16PF]) from Time One (entry
to medical school) to Time Two (exit from medical school);
2. There is no difference between objective personality characteristics (measured by the
16PF at Time Two) and subjective personality characteristics (measured by a
researcher-designed instrument at Time Two);
3. There is no difference in subjective personality characteristics between self-ratings
made on the researcher-designed instrument as viewed by "self" (measured at Time
Two, from the perspectives of Time One and Time Two) and self-ratings as viewed
by "others" (measured at Time Two); and,
4. There is no difference in personality characteristics at entry to medical school, when
measured objectively at Time One or subjectively at Time Two (i.e., retrospectively).
Statement of the Problem
The purpose of the present study was to determine whether there was a measurable
change in personality from the time one enters to the time one exits medical school. Potential
changes were viewed from an objective perspective through the use of a reliable and valid
psychological instrument already in widespread use. Additionally, such changes were examined
from a subjective perspective. That is, the participants’ perception of how they viewed
themselves at entrance to and exit from medical school, including their perception of how others
would view them at exit from medical school, were examined.
Null Hypotheses
The null hypotheses for the present study are as follows:
1. There is no change in personality as measured by the objective personality instrument
(the 16 Personality Factor Questionnaire, Fifth Edition [16PF]) from Time One (entry
to medical school) to Time Two (exit from medical school);
2. There is no difference between objective personality characteristics (measured by the
16PF at Time Two) and subjective personality characteristics (measured by a
researcher-designed instrument at Time Two);
3. There is no difference in subjective personality characteristics between self-ratings
made on the researcher-designed instrument as viewed by "self" (measured at Time
Two, from the perspectives of Time One and Time Two) and self-ratings as viewed
by "others" (measured at Time Two); and,
4. There is no difference in personality characteristics at entry to medical school, when
measured objectively at Time One or subjectively at Time Two (i.e., retrospectively).
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