Term 1: Statistics and Research Methods - Definitions and Concepts, Quizzes of Urbanization

Definitions and concepts related to statistics and research methods, including terms such as unit of observation, unit of analysis, ecological fallacy, true experiments, experimental group, comparison group, control group, quasi-experiments, population, sample, sampling procedures, sampling elements, sample frame, parameters, probability sampling, non-probability sampling, convenience sampling, purposive sampling, snowball sampling, quota sampling, probability sampling, stratified random sampling, cluster sampling, advantage of the free response format, disadvantages of the free response format, likert scale, 'double barreled' statements, and constructed or ad hoc attitudes.

Typology: Quizzes

2010/2011

Uploaded on 04/28/2011

sjmcpherson
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TERM 1
Unit of Observation
DEFINITION 1
Entity from which data are collected
TERM 2
Unit of Analysis
DEFINITION 2
Entity from which conclusions will apply.
TERM 3
Ecological Fallacy
DEFINITION 3
An ecological fallacy are inferences about the nature of
specific individuals are based solely upon aggregate
statistics collected for the group to which those individuals
belong.
TERM 4
3 characteristics of true
experiments
DEFINITION 4
1) Participants are assigned to two or more groups. 2)
Variation in the independent variable takes place before the
dependent variable is measured. 3) All other differences
between the groups are held constant through randomization
and experimental control.
TERM 5
Experimental Group
DEFINITION 5
receives a novel treatment that is the focus of the study.
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Unit of Observation

Entity from which data are collected

TERM 2

Unit of Analysis

DEFINITION 2

Entity from which conclusions will apply.

TERM 3

Ecological Fallacy

DEFINITION 3

An ecological fallacy are inferences about the nature of

specific individuals are based solely upon aggregate

statistics collected for the group to which those individuals

belong.

TERM 4

3 characteristics of true

experiments

DEFINITION 4

1) Participants are assigned to two or more groups. 2)

Variation in the independent variable takes place before the

dependent variable is measured. 3) All other differences

between the groups are held constant through randomization

and experimental control.

TERM 5

Experimental Group

DEFINITION 5

receives a novel treatment that is the focus of the study.

Comparison Group

receives a treatment that is very similar to the experimental

group in all respects except one.

TERM 7

control group

DEFINITION 7

comparison group that receives no treatment.

TERM 8

Quasi-Experiments

DEFINITION 8

experiments that lack one or more of the characteristics of

true experiments.

TERM 9

Population

DEFINITION 9

is the total set of cases about which we wish to draw some

conclusions.

TERM 10

Sample

DEFINITION 10

a subset of the population from which data are collected.

Non-probability sampling

Accomplished without the possibility of specifying the

probabilities of selection for each member of the sample.

TERM 17

Convenience sampling

DEFINITION 17

selects sample units because they are readily available

TERM 18

Purposive sampling

DEFINITION 18

Selects units on the basis of a studys research objectives

TERM 19

Snowball sampling

DEFINITION 19

begins with a list of people (defined by position or reputation)

and then asks member of the sample for additional people to

interview.

TERM 20

Quota sampling

DEFINITION 20

sampling identifies the proportion of people (usually in

demographic categories) needed in each category.

Probability Sampling

Designed to minimize potential selection bias, thus selecting

a sample that is representative of the population.

TERM 22

Stratified random sampling

DEFINITION 22

Used to ensure adequate representation of specific groups in

the final data set.

TERM 23

Cluster sampling

DEFINITION 23

Used primarily when there is no sample frame that lists all

units of analysis (e.g., households) and very high response

rates are needed.

TERM 24

Advantage of the free response format

DEFINITION 24

Personal associations/meaning.

TERM 25

Disadvantages of the free response format

DEFINITION 25

Answers are time consuming for respondents to provide and

interviewers to analyze.