Quiz about Stat Vocab 4.3-4.6

Question 1

In this type of experiment, neither the subjects nor those who interact with them and/or measure the response variable know which treatment a subject received.

Accepted Answer

Double-Blind Experiment

Answer

Matched-Pair Experiment

Answer

Placebo Effect

Answer

Completely Randomized Experiment

Question 2

The individuals or items to which treatments are applied.

Accepted Answer

Experimental

Units

Answer

Explanatory

Variable

Answer

Response

Variable

Answer

Confounding

Variable

Question 3

A factor that could potentially be influencing the outcome in an experiment or study, but is not officially being tested.

Accepted Answer

Confounding

Variable

Answer

Explanatory

Variable

Answer

Experimental

Units

Answer

Response

Variable

Question 4

The process of drawing conclusions about a population on the basis of sample data.

Accepted Answer

Inference

Answer

Treatment

Answer

Response

Variable

Answer

Explanatory

Variable

Question 5

The response to a dummy treatment.

Accepted Answer

Placebo Effect

Answer

Inference

Answer

Treatment

Answer

Response

Variable

Question 6

The factor being studied in an experiment that causes or predicts changes in the outcome.

Accepted Answer

Explanatory

Variable

Answer

Experimental

Units

Answer

Response

Variable

Answer

Confounding

Variable

Question 7

A specific condition applied to the individuals in an experiment.

Accepted Answer

Treatment

Answer

Explanatory

Variable

Answer

Placebo Effect

Answer

Response

Variable

Question 8

The factor that measures the outcome of an experiment or study.

Accepted Answer

Response

Variable

Answer

Explanatory

Variable

Answer

Experimental

Units

Answer

Confounding

Variable

Question 9

A common type of randomized block design for comparing two treatments in which similar experimental units are paired before randomly assigning them to different treatment groups.

Accepted Answer

Matched-Pair Experiment

Answer

Random

Sampling

Answer

Double-Blind Experiment

Answer

Completely Randomized Experiment

Question 10

Identify which of the four principles of experimental design is described:

Experimental units are assigned to treatment groups by a chance process.

Accepted Answer

Random Assignment

Answer

Comparision

Answer

Control

Answer

Replication

Question 11

Identify which of the four principles of experimental design is described:

Other variables that might affect the response variable are kept consistent or accounted for among the treatment groups.

Accepted Answer

Control

Answer

Comparision

Answer

Replication

Answer

Random Assignment

Question 12

Identify which of the four principles of experimental design is described:

Two or more treatment groups are created for the experiment.

Accepted Answer

Comparision

Answer

Control

Answer

Replication

Answer

Random Assignment

Question 13

Identify which of the four principles of experimental design is described:

Using enough experimental units in each treatment groups so that any differences in the response variable can be distinguished from chance differences between the groups.

Accepted Answer

Replication

Answer

Comparision

Answer

Control

Answer

Random Assignment

Question 14

If the individuals taking part in a study or experiment are randomly selected from the population, one ...

Accepted Answer

can infer about the population.

Answer

can prove causation.

Answer

must redo the study or experiment.

Question 15

In this type of experiment, random assignment of experimental units to treatments is carried out separately within each block created to minimize confounding variables.

Accepted Answer

Randomized Block Experiment

Answer

Matched-Pair Experiment

Answer

Double-Blind Experiment

Answer

Completely Randomized Experiment

Question 16

The word describes a group of experimental units that are known before the experiment to be similar in some way that is expected to affect the response to the

treatments.

Accepted Answer

Block

Answer

Control Group

Answer

Population

Answer

Sample

Question 17

If the individuals taking part in a study or experiment are randomly assigned to treatment groups, one ...

Accepted Answer

can prove causation.

Answer

can infer about the population.

Answer

must redo the study or experiment.

Question 18

An observed effect so large that it would rarely occur by chance is called ...

Accepted Answer

Statistically

Significant

Answer

Confounding

Answer

Proof of

Causation

Answer

Inference about the Population

Question 19

If you observe individuals and measure variables of interest but doe not attempt to influence the responses, you are conducting a ...

Accepted Answer

Observational Study

Answer

Randomized Block Experiment

Answer

Double-Blind Experiment

Answer

Completely Randomized Experiment

Question 20

This group is often created in an experiment to provide a baseline for comparing the effects of the treatments imposed on other groups.

Accepted Answer

Control

Group

Answer

Matched-Pair Group

Answer

Blocked

Group

Answer

Randomized

Group

Question 21

When an study deliberately imposes some treatment on individuals to measure their responses, they have conducted a ...

Accepted Answer

experiment

Answer

observational study

Answer

random

sampling

Answer

voluntary

sampling

Question 22

When participants are randomly selected,

we can make an inference about the population.

Accepted Answer

True

Answer

False

Answer

Only in an

experiment

Answer

Only in an

observational

study

Question 23

When participants are randomly selected,

we can make an inference about cause and effect.

Accepted Answer

False

Answer

True

Answer

Only in an

experiment

Answer

Only in an

observational

study

Question 24

When participants are randomly assigned to treatment groups in an experiment,

we can make an inference about the population.

Accepted Answer

False

Answer

True

Answer

Only in an

experiment

Answer

Only in an

observational

study

Question 25

When participants are randomly assigned to treatment groups in an experiment,

we can make an inference about cause and effect.

Accepted Answer

True

Answer

False

Answer

Only in an

experiment

Answer

Only in an

observational

study

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