Transcript The Kish Method

The Kish Method
Selecting the Participant
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If you have pre-selected the participant for the sample then
the data collection team only has to interview the selected
person.
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However, what if the participant has not been preselected? How can the participant randomly be selected
without bias from the data collection team?
The Kish Method
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A method that allows the data collection team to randomly
select participants from the household.
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Easy method that does not allow data collection bias.
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Provides proper documentation so the sample can be
weighted during data analysis.
Using the Kish Method
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Each household in the cluster will receive a number.
The Kish Household List will determine which Kish table should be
used for each household based on the number of the household.
The Kish Household Coversheet will be prepared for the data
collection team for each cluster prior to the interviews taking place.
The data collection team will fill out the household information on the
coversheet and select a participant based on the Kish table *
available on the coversheet.
* The Kish table is the Kish Summary of Eight Tables and is used to select the
participant based on the number of individuals in the household and the selected table number.
Materials for This Exercise
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To complete the Kish exercise you should have:
Kish Household List
 Kish Summary of Eight Tables
 Kish Household Coversheet, Exercise 1
 Kish Household Coversheet, Exercise 2
 Kish Household Coversheet, Exercise 3 (2x)
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Components of the Kish Method
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Kish Household List
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Kish Summary of Eight Tables
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Kish Household Coversheet
Kish Household List
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The selected households in each cluster should receive
cluster unique household numbers (i.e. if there are 35
selected households in a cluster then the households
should be numbers 1-35).
Each number is associated with a specific Kish Table.
The Kish household list only presents 49 households, if
you need to add more households the Kish Table list
repeats every 12 numbers.
Kish Summary of Eight Tables
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The Summary of Eight Tables determines which individual
from a household should be selected based on the
assigned Kish Table number and the number of adults in a
household.
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For example if you are using table C and there are four
eligible adults in the household, then you would select the
second adult in the list.
Kish Household Coversheet
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The Household coversheet includes components of the
Household List and the Summary of Eight Tables.
The coversheet is used to
rank the eligible individuals in the household and
 select the individual to be interviewed (regardless of
presence during the initial contact).
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The coversheet should be partially filled out by the data
collection team supervisor prior to field work.
Preparing the Household Coversheet
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The data collection team supervisor should
number the households in each cluster, if it has not already
been done,
 create a coversheet for each selected household,
 fill in the household number, cluster number, and participant
ID section of the coversheet, and
 use the Kish Household List to circle that appropriate Kish
Table on each coversheet.
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Filling out the Household Coversheet
during Household Visits
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After introducing themselves and the project the
interviewer should
ask for the age and sex of each eligible participant in the
household,
 list the household members on the coversheet,
 rank the household members by decreasing age (rank all the
men and then all the women), and
 select the participant by using the circled Kish Table.
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Ranked Household List
Sex
Age
M
61
Adult
Number
1
F
31
5
M
27
3
F
58
4
M
35
2
Selected
Respondent
Exercise 1: Rank the Household
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During a household visit you receive this information
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The age and sex of my family is:
 Male
age 61
 Female age 61
 Male age 28
 Male age 37
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List all the individuals in the household on the
Kish Household Coversheet, Exercise 1.
Exercise 1: Answer
Sex
Age
Adult
Number
M
61
1
M
M
37
28
2
3
F
61
4
Selected
Respondent
Exercise 2: Select the Participant
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Use the Kish Coversheet, Exercise 2 to complete this exercise.
The household composition is
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Female age 27
Male age 35
Female age 61
Male age 44
Male age 57
The circled table on the coversheet is the table you should use to
select the participant.
Exercise 2: Answer
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You should have selected the 61-year-old female.
Sex
Age
Adult
Number
M
M
57
44
1
2
M
F
F
35
61
27
3
4
5
Selected
Respondent
X
Oversampling 55–64-Year-Olds
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If the study design includes oversampling for
55–64-year-old age group, the Kish Coversheet will need
to be done separately for the 55–64-year-olds and the rest
of the household.
The data collection team supervisor should prepare
two coversheets for each household.
Exercise 3: Oversampling
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Use the Kish Coversheet, Exercise 3 to complete this exercise.
The sample design of the study includes over sampling the
55–64-year-old age group. Select a participant for the
55–64-year-olds and also for the 25–54-year-olds.
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The household composition is:
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Male age 64
Female age 61
Male age 30
Female age 37
Exercise 3: Answer
Sex Age
M
64
Adult
Num.
1
F
61
2
55–64-year-olds
Sex Age
25–54-year-olds
Selected
Respondent
X
Adult
Num.
Selected
Respondent
X
M
30
1
F
37
2