AP Statistics Unit 3 Vocabulary Quiz

An ​ (a)   does not have treatments imposed.

An ​ (b)   has treatments imposed.

• Observational Study
• Experiment

Tags

CCSS.HSS.IC.B.3

A ​ (a)   should include

the following:

a. ​ (b)   of at least two treatment

groups, one of which could be a

control group.

b. ​ (c)   assignment/allocation of

treatments to experimental units.

c. ​ (d)   (more than one experimental

unit in each treatment group).

d. ​ (e)   of potential confounding variables

where appropriate

• well-designed experiment
• Comparisons
• Random
• Replication
• Control

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5

Match the following:

• Control

• The complete set group of individuals

• Population

• A collection of experimental

  units either not given a treatment of interest or

  given a treatment with an inactive substance

• Placebo

• A treatment with an inactive substance

• Treatment

• Different conditions

  assigned to experimental units.

• Experimental Unit

• The individuals

  (which may be people or other objects of

  study) that are assigned treatments.

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5

Match the following:

• Cluster Random Sample

• The

  division of a population into separate groups based on shared attributes or

  characteristics (homogeneous grouping).

  A simple random sample is

  selected within each group, and the selected units are combined

  to form the sample.

• Systematic Random Sample

• A method in which sample members from a population are selected according to a random starting point and a fixed, periodic interval.

• Stratified Random Sample

• Involves the division of a

  population into smaller groups.

  Ideally, there is heterogeneity within each

  group. Data are collected

  from all observations in the selected group.

• Simple Random Sample (SRS)

• A sample in

  which every group of a given size has an equal

  chance of being chosen.

• Judgement Sample

• A non-probability sampling technique where the researcher selects units to be sampled based on their own existing knowledge.

Tags

CCSS.HSS.IC.B.3

Match the following

• Independent Variable

• Independent Variable symbol

• x

• A variable whose values are used to explain or

  predict corresponding values for the response variable.

• Confounding Variable

• Dependent Variable symbol

• Dependent Variable

• A variable whose values are explained or predicted by the explanatory variable

• y

• A variable that is related to the explanatory

  variable and influences the response

  variable and may create a false perception of

  association between the two.

Tags

CCSS.HSS.ID.C.7

CCSS.HSS.ID.C.9

An official count or survey of a population, typically recording various details of individuals.

Tags

CCSS.6.SP.B.5

Occurs when certain responses are

systematically favored over others.

Tags

CCSS.HSS.IC.B.5

Which of the following are required for an experiment to be well-designed:

• Comparison

• Random Assignment

• Replication

• Placebo

• Control

Tags

CCSS.HSS.IC.B.3

Match the following

• Control

• When you consider two or more things and discover the differences between them. 

• Replication

• Reducing potential confounding variables

  where appropriate

• Comparison

• More than one experimental unit in each treatment group

• Random

• If every possible sample has equal probability of selection.

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5

Match the following

• Matched Pairs Design

• Treatments are assigned completely at random within each block.

• Single-Blind Study

• A special case of a randomized block design. Using a blocking variable, subjects (whether they are people or not) are arranged in pairs matched on relevant factors.

• Double-Blind Study

• Neither the subjects nor the members of the research team who interact with them know which

  treatment a subject is receiving.

• Completely Randomized Design

• Subjects do not know which treatment they are receiving, but members of the research team do, or vice versa.

• Randomized Complete Block Design

• Treatments are assigned to experimental units

  completely at random.

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5