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2. Encyclopedia of Survey Research Methods
Paul J. Lavrakas
Pub.date: | DOI: 10.4135/9781412963947
Print ISBN: 9781412918084 | Online ISBN: 9781412963947
Encyclopedia Entry
Solomon Four-Group Design
M. H. Clark & William R. Shadish
The Solomon four-group design is an experimental design that assesses the plausibility of pretest
sensitization effects , that is, whether the mere act of taking a pretest influences scores on
subsequent administrations of the test. For example, if respondents complete a questionnaire
measuring their knowledge of science as a pretest, they might then decide to subsequently seek
answers to a few unfamiliar equations. At the posttest they might then score better on the science
test compared to how they would have scored without taking the pretest. Meta-analytic results
suggest that pretest sensitization does occur, although it is more prevalent for some measures
than others, and the more time passes between pretest and posttest, the less likely a testing effect
will occur. In the Solomon four-group design, the researcher randomly assigns respondents to
one of four cells constructed from two fully crossed factors: treatment (e.g. treatment and
control) and pretest administration ...
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About this title
Table of contents
o
Front Matter
o
A
ABC News/Washington Post Poll
Access Lines
Acquiescence Response Bias
Adaptive Sampling
Add-a-Digit Sampling
Address-Based Sampling
3. Advance Contact
Advance Letter
Agenda Setting
Aided Recall
Aided Recognition
Algorithm
Alpha, Significance Level of Test
Alternative Hypothesis
American Association for Public Opinion Research (AAPOR)
American Community Survey (ACS)
American Statistical Association Section on Survey Research
Methods (ASA-SRMS)
Analysis of Variance (ANOVA)
Anonymity
Answering Machine Messages
Approval Ratings
Area Frame
Area Probability Sample
Attenuation
Attitude Measurement
Attitudes
Attitude Strength
Attrition
Audio Computer-Assisted Self-Interviewing (ACASI)
Aural Communication
Auxiliary Variable
Abandoned Calls
Absolute Agreement
Absolute Frequency
Accuracy
Action Research
Active Listening Skills
Active Screening
Adding Random Noise
Address Matching
Adjustment Errors
Agree-Disagree Scale
Analysis Unit
Ascription
Asymptotically Design Unbiased
Attentive Processing
Audio-Visual Computer-Assisted Self-Interviewing (AVCASI)
Autodialer
Autodispositioning
Automatic Answering Machine Detection
Autonomy
6. Convenience Sampling
Convention Bounce
Conversational Interviewing
Cooperation
Cooperation Rate
Correlation
Council for Marketing and Opinion Research (CMOR)
Council of American Survey Research Organizations (CASRO)
Covariance
Coverage
Coverage Error
Cover Letter
Cronbach's Alpha
Crossley, Archibald (1896-1985)
Cross-Sectional Data
Cross-Sectional Survey Design
Current Population Survey (CPS)
Cutoff Sampling
Calibration
Call Center
Case Control Form
Case Outcome Rates
Case Number
Case Study
Categorical Variable
Causal-Comparative Research
Choice Questionnaire
City Directory
Clarification Probe
Closed Rings
Closeness Property
Codec
Code Value Labels
Coefficient of Variation
Coercion
Cognitive Burden
Cohen's Kappa
Cohort Panel Survey
Cold-Deck Imputation
Computer Audio-Recorded Interviewing
Concordance Correlation Coefficient
Conditional Probability
Contingency Test
Continuous Random Variable
Correction for Attenuation
Cost Driver
7. Cost Object
Counting Rule
Coverage Rate
Cum √f(x) Rule
Curb-Stoning
D
Data Management
Data Swapping
Debriefing
Deception
Deliberative Poll
Demographic Measure
Dependent Interviewing
Dependent Variable
Designated Respondent
Design-Based Estimation
Design Effects (deff)
Diary
Differential Attrition
Differential Nonresponse
Directory Sampling
Disclosure
Disclosure Limitation
Disk by Mail
Dispositions
Disproportionate Allocation to Strata
Do-Not-Call (DNC) Registries
Don't Knows (DKs)
Double-Barreled Question
Double Negative
Drop-Down Menus
Dual-Frame Sampling
Duplication
Data Augmentation
Data Coarsening
Data Editing
Data Shuffling
Data Synthesis
Declaration of Helsinki
Deductive Imputation
De-Duping
De Facto Residence Rule
De Jure Residence Rule
Delivery Sequence File (DSF)
Deontological Ethics
8. Descriptive Norms
Descriptive Statistic
Designated Sample Size
Detection Technique
Differential Incentive
Differential Item Functioning
Direct Costs
Directed Swapping
Direct Estimation
Directional Hypothesis
Directive Probing
Disclosure Avoidance
Discrete Random Variable
Dispersion
Dissemination Unit
Doorstep Introduction
Dummy Coding
E
E
Ecological Fallacy
Economic Exchange Theory
Effective Sample Size
Election Night Projections
Election Polls
Elements
Eligibility
Email Survey
Encoding
EPSEM Sample
Equal Probability of Selection
Error of Nonobservation
Errors of Commission
Errors of Omission
Establishment Survey
Ethical Principles
Event History Calendar
Exhaustive
Exit Polls
Experimental Design
External Validity
Extreme Response Style
Ecological Validity
Editing Rules
Effect Size
Error of Observation
9. Estimated Best Linear Unbiased Prediction (EBLUP)
Estimation
Ethnographic Research
European Directive on Data Protection
Event-Based Diary
Event Location Matching
Excellence in Media Coverage of Polls Award
Expert Sampling
F
Face-to-Face Interviewing
Factorial Design
Factorial Survey Method (Rossi's Method)
Fallback Statements
Falsification
Fast Busy
Favorability Ratings
Federal Communications Commission (FCC) Regulations
Federal Trade Commission (FTC) Regulations
Feeling Thermometer
Field Coding
Field Director
Field Period
Field Survey
Field Work
Final Dispositions
Finite Population
Finite Population Correction (FPC) Factor
Focus Group
Forced Choice
FRAME
Frequency Distribution
FRUGing
F-Test
False Negatives
False Positives
Family-Wise Error Rate
Fear of Isolation
Fictitious Question
Field Interviewer
Field Substitution
Filter Question
Final Sample Size
Fisher's Exact Test
Fixed Costs
Fixed Panel Survey
10. Flexible Interviewing
Following-Rule
Follow-Up Mailings
Forced Response Technique
Foreign Elements
Forgiving Wording
Forward Telescoping
Foveal View
Framing
G
Gallup, George (1901-1984)
Gallup Poll
Gatekeeper
General Social Survey (GSS)
Geographic Screening
Gestalt Psychology
Graphical Language
Guttman Scale
General Inverse Sampling
Generalized Variance Function (GVF)
Generic Ballot Question
Ghost Numbers
Gibbs Sampling
Grid Frame
Grounded Theory Research
H
Hagan and Collier Selection Method
Half-Open Interval
Hang-Up During Introduction (HUDI)
Hansen, Morris (1910-1990)
Hit Rate
Horse Race Journalism
Hot-Deck Imputation
Household Refusal
HTML Boxes
Half-Samples Method
Hard Refusal
Hausman Test
Hawthorne Effect
Hidden Population
Historical Research
Homophily Principle
Horvitz-Thompson Estimator
Household Panel Survey
11. I
Ignorable Nonresponse
Imputation
Inbound Calling
Incentives
Independent Variable
Ineligible
Inference
Informant
Informed Consent
Institute for Social Research (ISR)
Institutional Review Board (IRB)
Interaction Effect
Interactive Voice Response (IVR)
Intercoder Reliability
Internal Validity
International Field Directors and Technologies Conference
(IFD&TC)
International Journal of Public Opinion Research (IJPOR)
International Social Survey Programme (ISSP)
Internet Pop-Up Polls
Internet Surveys
Interpenetrated Design
Interrater Reliability
Interval Estimate
Interval Measure
Interviewer
Interviewer Characteristics
Interviewer Debriefing
Interviewer Effects
Interviewer Monitoring
Interviewer Monitoring Form (IMF)
Interviewer Neutrality
Interviewer Productivity
Interviewer-Related Error
Interviewer Training
Interviewer Variance
Interviewing
Intracluster Homogeneity
Introduction
Inverse Sampling
Issue Definition (Framing)
Item Order Randomization
Item Response Theory
Ignorable Sampling Mechanism
12. Implicit Stratification
Incidental Truncation
Incorrect Stratum Allocation
Incumbent Rule
Index of Inconsistency
Index of Reliability
Indirect Costs
Inferential Population
Inferential Statistic
Injunctive Norms
In-Person Survey
Interaction Analysis
Intercept Polls/Samples
Internal Consistency
Interquartile Range
Inter-University Consortium for Political and Social Research
(ICPSR)
Interviewer Refusal Aversion Training
Interviewer-Respondent Matching
Interviewer-Respondent Rapport
Interviewer Talk Time
Interviewer Training Packet
Interviewer Wait Time
Intraclass Correlation Coefficient
Intraclass Homogeneity
Intrusiveness
Invariance
Issue Publics
Item Bank
Item Characteristic Curve
Item Count Technique
Item Nonresponse
Item Order Effects
J
Jackknife Variance Estimation
Joint Program in Survey Methodology (JPSM)
Journal of Official Statistics (JOS)
Judgment
Judgmental Sampling
Judgment Ranking
Juvenile Assent
K
Key Informant
Kish, Leslie (1910-2000)
13. Kish Selection Method
Knowledge Gap
Knowledge Question
Known Probability of Selection
Kuk's Card Method
L
Language Barrier
Language Translations
Last-Birthday Selection
Leaning Voters
Level of Analysis
Level of Measurement
Leverage-Saliency Theory
Likely Voter
Likert Scale
List-Assisted Sampling
Listed Number
List-Experiment Technique
List Sampling
Litigation Surveys
Log-In Polls
Longitudinal Studies
Landmark Event
Latent Attitude
Latent Variable
Level of Significance
Levels-of-Processing Effect
Life Event Calendar
Likelihood of Voting
Linear Weighting
Linguistic Isolation
Link-Tracing Design
Listed Stratum
Listwise Deletion
Logical Imputation
M
Mail Questionnaire
Mail Survey
Main Effect
Mall Intercept Survey
Marginals
Margin of Error (MOE)
Mass Beliefs
Matched Number
14. Mean
Mean Square Error (MSE)
Measurement Error
Median
Media Polls
Metadata
Methods Box
Minimal Risk
Misreporting
Missing Data
Mitofsky-Waksberg Sampling
Mixed-Mode
Mode
Mode Effects
Model-Based Estimation
Mode of Data Collection
Mode-Related Error
Multi-Level Integrated Database Approach (MIDA)
Multi-Mode Surveys
Multiple-Frame Sampling
Multiple Imputation
Multiplicity Sampling
Multi-Stage Sample
Mutually Exclusive
Maintaining Interaction
Manifest Variable
Mapping
Mark-Release-Recapture Sampling
Masking
Masking Effect
Maximum Abandonment Rate
Maximum Required Sample Size
Mean Imputation
Mean Substitution
Measured Reliability
Measure of Size (MOS)
Median Absolute Deviation (MAD)
M-Estimation
Meta-Analysis
Method of Random Groups
Microaggregation
Missing at Random (MAR)
Missing by Design
Missing Completely at Random (MCAR)
Mixed-Methods Research Design
Mock Interviews
15. Moving Averages
Multinomial Sampling
Multiple Inverse Sampling
Multiplicative Weighting
Multiplicity of Elements
Murthy's Estimator
N
N
National Council on Public Polls (NCPP)
National Election Pool (NEP)
National Election Studies (NES)
National Health and Nutrition Examination Survey (NHANES)
National Health Interview Survey (NHIS)
National Household Education Surveys (NHES) Program
National Opinion Research Center (NORC)
Network Sampling
New York Times/CBS News Poll
Neyman Allocation
Nominal Measure
Nonattitude
NoncausalCovariation
Noncontact Rate
Noncontacts
Noncontingent Incentives
Noncooperation Rate
Noncoverage
Nondifferentiation
Nondirective Probing
Nonignorable Nonresponse
Nonprobability Sampling
Nonresidential
Nonresponse
Nonresponse Bias
Nonresponse Error
Nonresponse Rates
Nonsampling Error
Nontelephone Household
Nonverbal Behavior
Null Hypothesis
Number Changed
Number Portability
Number Verification
Nay-Saying
Nearest Distance Matching
Net Effective Incidence
16. NeuStar
News Polls
Next-Birthday Selection
Nondirectional Hypothesis
Nonobservational Errors
Nonzero Probability of Selection
NORC
Normative Crystallization
Normative Intensity
Not Missing at Random (NMAR)
Number of Strata
Nuremberg Code
Noncooperation
O
Open-Ended Question
Opinion Norms
Opinion Question
Opinions
Optimal Allocation
Ordinal Measure
Outbound Calling
Outliers
Out of Order
Out of Sample
Overcoverage
Overreporting
Observational Errors
One-and-a-Half-Barreled Question
Open-Ended Coding
Optimum Stratum Allocation
Optimum Stratum Boundaries
Original Sample Member
Other [Specify]
Outcome Rates
P
Paired Comparison Technique
Panel
Panel Conditioning
Panel Data Analysis
Panel Fatigue
Panel Survey
Paper-and-Pencil Interviewing (PAPI)
Paradata
Parameter
17. Partial Completion
Percentage Frequency Distribution
Percentile
Perception Question
Perturbation Methods
Pew Research Center
Pilot Test
Point Estimate
Political Knowledge
Poll
Polling Review Board (PRB)
Pollster
Population
Population of Inference
Population of Interest
Population Parameter
Positivity Bias
Post-Stratification
Post-Survey Adjustments
Precision
Precision Journalism
Precoded Question
Predictive Dialing
Pre-Election Polls
Prefix
Pre-Primary Polls
Primacy Effect
Primary Sampling Unit (PSU)
Priming
Prior Restraint
Privacy
Privacy Manager
Probability
Probability of Selection
Probability Proportional to Size (PPS) Sampling
Probability Sample
Probable Electorate
Probing
Propensity Scores
Propensity-Weighted Web Survey
Proportional Allocation to Strata
Protection of Human Subjects
Proxy Respondent
Pseudo-Polls
Psychographic Measure
Public Opinion
18. Public Opinion Quarterly (POQ)
Public Opinion Research
Purposive Sample
Push Polls
Pairwise Deletion
Panel Attrition
Panel Management
Paralinguistic Communication
Parallel Forms Consistency
Parallel Retrieval
Parental Consent
Part-Whole Contrast Effects
Passive Screening
Percentage Bend Midvariance
Percentile Point
Percentile Rank
Permanent Random Number Technique
Persuaders
Phenomenological Research
Placebo
Plausible Values
Play-the-Winner Sampling
Plot Frame
Population Characteristics
Population Variance
Post-Coding
Post-Imputation Variance Estimates
Post-Randomization Method
Power
Pre-Attentive Processing
Pre-Coding
Predictor Variable
Prenotification
Presidential Approval
Pre-Survey Notification
Pretest Sensitization Effects
Prevention Technique
Preview Dialing
Prime Telephone Numbers
Principles of Disclosure
Proactive Dependent Interviewing
Probability Minimum Replacement (PMR) Sampling
Process Data
Processing Errors
Production Rate
Proportionate Random Sample
19. Pseudo-Opinion
Pseudo-Panels
Pseudorandom Numbers
Public Judgment
Pretest
Q
Quality Control
Quality of Life Indicators
Questionnaire
Questionnaire Design
Questionnaire Length
Questionnaire-Related Error
Question Order Effects
Question Stem
Question Wording as Discourse Indicators
Quota Sampling
Quality Circle Meetings
Questionnaire Translation
R
Radio Buttons
Raking
Random
Random Assignment
Random-Digit Dialing (RDD)
Random Error
Randomized Response
Random Order
Random Sampling
Random Start
Ranked-Set Sampling (RSS)
Ranking
Rare Populations
Rating
Ratio Measure
Raw Data
Reactivity
Recency Effect
Recoded Variable
Recontact
Record Check
Reference Period
Refusal
Refusal Avoidance
Refusal Avoidance Training (RAT)
20. Refusal Conversion
Refusal Rate
Refusal Report Form (RRF)
Registration-Based Sampling (RBS)
Regression Analysis
Reinterview
Relative Frequency
Reliability
Repeated Cross-Sectional Design
Replacement
Replicate Methods for Variance Estimation
Replication
Representative Sample
Research Call Center
Research Design
Research Hypothesis
Research Management
Research Question
Residence Rules
Respondent
Respondent Burden
Respondent Debriefing
Respondent-Driven Sampling (RDS)
Respondent Fatigue
Respondent-Interviewer Rapport
Respondent Refusal
Respondent-Related Error
Response
Response Alternatives
Response Bias
Response Latency
Response Order Effects
Response Propensity
Response Rates
Retrieval
Reverse Directory
Reverse Directory Sampling
Reverse Record Check
Rho
Role Playing
Rolling Averages
Roper, Elmo (1900-1971)
Roper Center for Public Opinion Research
Rotating Panel Design
Randomization Test
Random Swapping
28. Randomization
First and foremost, learn to think of the people who participate in your experiment, control
group(s) as well as experimental group(s) as representatives. They represent persons who
may receive the new treatment or procedure in the future, if your experiment yields
promising results. Persons in the control group as well as the experimental group must be
equally likely candidates, and, to be really correct, the persons who participate in your
experiment should be drawn randomly from all persons who could conceivably be
candidates for the new treatment or procedure. (This last condition is rarely feasible, but
you need to be aware of it.) Drawing from the total population of all possible candidates is
random selection. Once a pool of participants is randomly selected, they are randomly
assigned to experimental or control group(s).
The Posttest-Only Control Group Design
This design can be diagrammed as follows:
We shall start our discussion of the true experimental designs with the Posttest-Only
Control Group Design, as this is the simplest possible form of the true experiment.
The Pretest-Posttest Control Group Design
This design can be diagrammed as follows:
Randomization is used in the Posttest-Only Control Group design to create a situation of
initial statistical equivalence of the experimental and control groups. Under some
conditions, however, it is desirable to actually measure certain participant characteristics
29. before commencing the experiment. The simplest means of accomplishing this is to use the
Pretest-Posttest Control Group design.
The Solomon Four-Group Design
This design can be diagrammed as follows:
The Solomon Four-Group Design is a very tight experimental design, controlling well for
both internal and external potential sources of error or ambiguity.
Summary