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AP Statistics > 4.2 Notes Part 1 > Flashcards

4.2 Notes Part 1 Flashcards

1
Q

Observes individuals and measure variables of interest

A

Observational Study

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2
Q

No attempt is made to influence responses

A

Observational Study

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3
Q

Past

A

Retrospective

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4
Q

Ongoing

A

Prospective

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5
Q

Imposes some treatment on individuals in order to observe their responses

A

Experiment

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6
Q

Helps give good causation

A

Experiment

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7
Q

Individuals on which the experiment is being performed

A

Experimental Units

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8
Q

When experimental units are human beings

A

Subjects

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9
Q

Explanatory Variable in an experiment

A

Factor

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10
Q

Specific values of a treatment a factor takes
Controlled by experimenter

A

Level

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11
Q

A condition that is applied to an experimental unit
Can be a combination of factors and levels

A

Treatment

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12
Q

What is measured and used for comparison
Can be sued more than one thing

A

Response Variable

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13
Q

Control, Randomization, Replication

A

Principles of experimental design

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14
Q

Done by comparing two or more treatments

A

Control

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15
Q

Used to assign experimental units to treatments

A

Randomization

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16
Q

Produces groups that should be similar in all respects before the treatment applies

A

Randomization

17
Q

Performing the experiment several times to ensure that the results are statistically significant

A

Replication

18
Q

Tools used for Control

A

Placebo

19
Q

A dummy treatment used to see if something works

A

Placebo

20
Q

Experimental units assigned the baseline treatment

A

Control Group

21
Q

Either no treatment, default treatment, or placebo

A

Control Group

22
Q

When an observed outcome is too large to just occur by chance

A

Statically Significant

23
Q

Randomly and evenly assigned experimental units to treatment

A

Completely Randomized Design

24
Q

A group of similar experimental units that would have an effect on the results

A

Block Design (Blocking)

25
Q

2 subjects with equal characteristics are given different treatments and then compared

A

Matched Pairs Design

AP Statistics (8 decks)

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