RESEARCH CONDUCTED BY: Mikki Hebl and Jingping Xu
CASE STUDY PREPARED BY: Emily Zitek
OVERVIEW
Obese people face discrimination on a daily basis in employment, education, and relationship contexts. Past research has shown that even doctors, who are trained to treat all their patients warmly and have access to literature suggesting uncontrollable and hereditary aspects of obesity, believe obese individuals are undisciplined and suffer from controllability issues. This case study examines how doctors treat overweight as compared to normal weight patients.
Various doctors at one of three major hospitals in the Texas Medical Center of Houston participated in the study. These doctors were sent a packet containing a medical chart similar to the one they view upon seeing a patient. This chart portrayed a patient who was displaying symptoms of a migraine headache but was otherwise healthy. This chart also contained a measure of the patient's weight. Doctors were randomly assigned to receive the chart of a patient who was overweight or the chart of a patient who was of normal weight. After reviewing the chart, the doctors then had to indicate how much time they believed they would spend with the patient.
DESIGN ISSUES
The method and data described here are only a small part of a larger study. See the reference below for a full description of the study.
DESCRIPTIONS OF VARIABLES
VARIABLE DESCRIPTION
Patient weight 1 = average weight, 2 = overweight
Time represents how long the doctors said they would spend with the patient
WEIGHT TIME
1 15
1 15
1 45
1 40
1 45
1 20
1 40
1 30
1 40
1 30
1 30
1 50
1 30
1 45
1 45
1 30
1 50
1 30
1 30
1 20
1 30
1 20
1 30
1 20
1 20
1 30
1 25
1 20
1 40
1 30
1 30
1 30
1 30
2 20
2 30
2 30
2 20
2 25
2 20
2 20
2 30
2 30
2 15
2 30
2 20
2 5
2 20
2 15
2 30
2 25
2 30
2 30
2 20
2 15
2 15
2 20
2 45
2 15
2 60
2 15
2 15
2 20
2 15
2 30
2 30
2 30
2 30
2 30
2 30
2 30
2 30
5. Physicians’ Reactions (PR) case study (30 points)
For this problem, use the time spent with the overweight patients.
1. Compute the mean and standard deviation of this distribution.
2. What is the probability that if you chose an overweight participant at random, the doctor would have spent 31 minutes or longer with this person?
3. Now assume this distribution is normal (and has the same mean and standard deviation). Now what is the probability that if you chose an overweight participant at random, the doctor would have spent 31 minutes or longer with this person?