GNED 1101 Questions, Answers| Newest Update
2026/2027
Statistical population
The complete set of values
Sample
A subset of the population
Population parameters
The characteristics of the statistical population
Sample statistics
Summary of the data gathered from the sample
Choosing a sample
The most important step in any statistical analysis (representative)
Sampling Bias
Design or conduct tends to favor certain results
Selection Bias
Researchers select participants for the study
Participation Bias
Participants volunteer in the study
Simple random sample
, Every member (value) has an equal chance of being chosen
Systematic sample
A sample is chosen using a simple system (every 10th person)
Convenience sample
A convenient sample is chosen
Stratified sample
A sample is chosen from different subgroups of the population, within each group simple
random sampling is done
Experimental design
Has a placebo effect
Single blind
Participants don't know if they are the treatment or control group
Double blind
Neither participants nor researchers know who is in treatment or control group
Case study
Participants who engage in behavior under study. They are a treatment group
Control
Participants who do not engage in behavior under study. They are a control group
Survey
2026/2027
Statistical population
The complete set of values
Sample
A subset of the population
Population parameters
The characteristics of the statistical population
Sample statistics
Summary of the data gathered from the sample
Choosing a sample
The most important step in any statistical analysis (representative)
Sampling Bias
Design or conduct tends to favor certain results
Selection Bias
Researchers select participants for the study
Participation Bias
Participants volunteer in the study
Simple random sample
, Every member (value) has an equal chance of being chosen
Systematic sample
A sample is chosen using a simple system (every 10th person)
Convenience sample
A convenient sample is chosen
Stratified sample
A sample is chosen from different subgroups of the population, within each group simple
random sampling is done
Experimental design
Has a placebo effect
Single blind
Participants don't know if they are the treatment or control group
Double blind
Neither participants nor researchers know who is in treatment or control group
Case study
Participants who engage in behavior under study. They are a treatment group
Control
Participants who do not engage in behavior under study. They are a control group
Survey
