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Chapter 4: Probability & Statistics Flashcards | StudBud
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Chapter 4: Probability & Statistics
Chapter 4: Probability & Statistics
29 terms
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1
Cluster _____ selects a _____ by randomly choosing clusters and including each member in the selected ______
Picking
Selecting
Sample
Choosing
2
What’s a convenience sample?
Selects from people easy to reach
Selects based on a group
Selects randomly
Select by people who are best for it
3
Common design for comparing two treatments that uses blocks of size 2
Matched Pairs Design
Disorganized mismatched Idea
Two matching socks
Statistical Analysis Design
4
Experimental units are assigned to treatments via a chance process
Modnar Tnemngissa
Random Assignment
Straightforward Task
Mystery Wheel Of Wonders
5
Observed results that are too abnormal to be explained by chance alone
Abnormality
Statistically significant
Analytically trivial
Outlier
6
What is bias? (In a statistical study)
If the value is true
If it over estimates the value that you want
If it underestimates the value of what you want show
If the value is wrong
7
The experimenters OR the participants don’t know who received the treatment to measure the response variable
Single Blind
Singularity Blind
Monochrome Blind
Mono Blind
8
Known before the experiment to be similar in a way that is expected to affect the response to the treatment
Rock
Block
Mock
Sock
9
Different random samples of same size population = production of different estimates
Replication
Population density
Sample size
Sampling Variability
10
How does stratified random sampling select people?
By randomly selecting in a population
By using one strata to randomly chose in a group
By selecting each strata and picking not randomly
By randomly selecting from each strata in a study and picking randomly
11
Individual chosen for the sample can’t be contacted or refuses to participate
Yesresponsive
Nonresponse
Null response
Middleresponsive
12
What is a strata
People who have similar names
People are different and are in the study
People who share characteristics which go with the study
People who don’t share anything in common
13
Systematic pattern of inaccurate answers to a survey question
Halo Effect
Fundamental Attribution Error
Response Bias
Hindsight Bias
14
Experimental units are assigned to the treatments by chance completely by chance
Completely Randomized Design
Totally Random Experiment
CRD
Incomplete Straightforward Concept
15
A ________ _______ is a study that collects data from a sample that is chosen to represent a specific population
Size study
Population study
Sample study
Example study
16
A type of experiment in which the experimenters nor the participants know whether they had received the treatment
Penta Blind
Mono Blind
Triple Blind
Double Blind
17
How does Voluntary response sampling gather a population
By responding to a general invite
By randomly asking
By asking based on a certain quality
Based on gender
18
A ______ is used to provide a baseline for comparing the effects of other treatments
Independent Group
Dependency Group
Independent Variable
Control Group
19
What is a cluster
Picking using the study
Random people placed in a random group
By selecting people that are located near each other
Picking based on personality
20
Population that is less likely to be chose or cannot be chosen in a sample
Middlewaysemicovered
Undercoverage
Overexposed
Hemisphere
21
The __________ in a statistical study is the entire group of individuals we want information about
Census
Sample
Amount
Population
22
What is it called when a study collects data from the population?
Bias
Census
Population
Collecting data
23
The subset of a population is called (in a data set).
Volunteers
Select amount
Sample
Citizens
24
This effect describes that some subjects in an experiment will respond favorably to any treatment, even an inactive one.
Obecalp Effect
Sugar Pill
Placebo Effect
Deception Effect
25
Using enough experimental units to see a difference in the effect of the treatment via random assignment
Addition
Replication
Subtraction
Multiplication
26
_______ sampling involves using chance to determine who is included in the population
Voluntary
Half
Random
Dice
27
Keeping other variables constant for all other experimental units
Control
Independent
Chaos
Dependent
28
How does simple random sample differ from random sample
Uses a different variable
The selection is different
The size is different and uses variables
No change
29
Random assignment of experimental units to treatments is carried out separately within each block
Straightforward Cube Idea
Randomized Block Design
Block
Design
