Lecture 5B, part 3

Question 1

What do targets of purposive sampling often have?

Answer 1

A particular characteristic directly related to the research question

Question 2

Purpose of purposive sampling

Answer 2

Often used to evaluate programs or when testing a questionnaire

Question 3

Definition of quota sampling

Answer 3

Method used to include an array of subject characteristics in predefined proportions (type of purposive sampling)

Question 4

How is quota sampling done?

Answer 4

Data are collected from persons having the desired characteristics/select pop based on quotas of background info

Question 5

What is snowball sampling?

Answer 5

Peer-referral sampling, used for hard to reach pops

Question 6

How does snowball sampling work?

Answer 6

Selection of initial seeds drives recruitment process
May involve incentives for referrals

Question 7

How does respondent-driven sampling work?

Answer 7

Similar to snowball sampling, but…
Seeds given coupons to recruit additional participants from within their social network
Can be used to approximate networks/mathematical modeling used to weight the sample to compensate for non-random data collection

Question 8

What law was passed in 1956 have to do with surveys? What was the purpose?

Answer 8

National Health Survey Act provided legislative authorization for a continuing survey to provide current statistical data on the amount, distribution, and effects of illness and disability in the U.S.

Question 9

What conducts surveys and manages data collection systems?

Answer 9

National Center for Health Statistics

Question 10

Source of National Survey of Family Growth

Answer 10

CDC/NCHS

Question 11

Purpose of National Survey of Family Growth

Answer 11

Gathers info on family life, marriage and divorce, pregnancy, infertility, use of contraception, and men’s and women’s health

Question 12

Timeframe of National Survey of Family Growth

Answer 12

Cycles 1-5 surveys of women (1973-1995), cycle 6 (2002) 2006-2010 and 2011-2015

Question 13

Sample in National Survey of Family Growth

Answer 13

Men and women aged 14-44 living in HH in the U.S., approximately 5,000 interviews conducted each yr

Question 14

Sampling method of National Survey of Family Growth

Answer 14

Multi-stage national area probability sample design

Question 15

Data collection method of National Survey of Family Growth

Answer 15

In-person interviews by trained female interviewers, conducted in respondents’ homes (using computer-assisted personal interviewing)

Question 16

Source of National Health and Nutrition Examination Survey

Answer 16

CDC/NCHS

Question 17

Purpose of National Health and Nutrition Examination Survey

Answer 17

Designed to assess the health and nutritional status of adults and children in the U.S.

Question 18

Timeframe of National Health and Nutrition Examination Survey

Answer 18

Began in early 1960s, conducted as a series of surveys

Question 19

Sample of National Health and Nutrition Examination Survey

Answer 19

Nationally representative of about 5,000 persons each year

Question 20

Sampling method of National Health and Nutrition Examination Survey

Answer 20

Multi-stage cluster sampling

Question 21

Data collection method of National Health and Nutrition Examination Survey

Answer 21

Combines interviews and physical examinations (most in-depth and logically complex survey conducted by NCHS)

Question 22

Interview component measures of National Health and Nutrition Examination Survey

Answer 22

Demographic, socioeconomic, dietary, health-related outcomes and behaviors

Question 23

Exam component measures of National Health and Nutrition Examination Survey

Answer 23

Medical, dental, and physiological measurements, lab tests

Question 24

Source of Behavioral Risk Factor Surveillance System

Answer 24

Partnership between CDC/NCCDPHP and State HDs

Question 25

Purpose of Behavioral RF Surveillance System

Answer 25

Collect state-level data about U.S. residents regarding health-related risk behavior, chronic health conditions, and use of preventive services