Quiz6ch131415 Flashcards

1
Q

What are the five steps for data analysis?

A

1) Validation and editing, 2) coding, 3) data entry, 4) logical cleaning of data, 5) tabulation and statistical

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2
Q

What is the ascertain that interviews were conducted as specified?

A

Validation

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3
Q

What is the checking for interviewer and respondent mistakes?

A

Editing

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4
Q

What is coding?

A

The grouping and assigning numeric codes to responses

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5
Q

What are the four steps in the coding process?

A

1) Listing responses, 2) consolidating responses to open questions, 3) settings codes, 4) entering codes

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6
Q

What is converting information to a form that can be read by software?

A

Data entry

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7
Q

What is the final computerzied error check of data?

A

Logical cleaning of data

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8
Q

What is a computer-generated table of frequencies of responses to each question to monitor entry of valid codes?

A

Marginal Report

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9
Q

What is a one way frequency table?

A

A table showing the number of responses to each answer

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10
Q

What is the examination of responses to one question relative to responses to one or more other questions?

A

Cross Tabulation

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11
Q

What is a common way to set up cross-tabs?

A

Demographics and other predictors in the column section

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12
Q

What is statistical inference?

A

To generalize from sample results to population characteristics

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13
Q

What are the three concepts of differences?

A

Mathematical differences, statistical significance, managerially important differences

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14
Q

What is a type 1 error?

A

Rejection of the null when it is in fact true

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15
Q

What is the statistical methods of analyzing the relationship between two variables?

A

Bivariate Techniques

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16
Q

What are multivariate techniques?

A

When more than two variables are involved

17
Q

What does the independent variable do?

A

Affects the value of the dependent variable

18
Q

What is bivariate regression defined?

A

Analyzing strength of linear relationship between dependent and independent variable

19
Q

What is the least squares estimation procedure?

A

Results in a straight line that fits the actual observations better than any other line that could be fitted

20
Q

What is the predicted value for Y based on calculated values?

A

Regression Line

21
Q

What is the measure of the strength of the linear relationship between X and Y

A

Coefficient of determination

22
Q

Is 1 closer to a perfect or no relationship in terms of R^2?

A

Perfect Relationship

23
Q

Wis the degree to which changes in one variable are associated with changes in another?

A

Correlation

24
Q

What is Pearson’s product moment correlation?

A

Correlation analysis technique for use with metric data

25
What is the Spearman correlation?
Measure of association using ordinal or rank order data
26
What does the executive summary do?
Summarizes the reasons for the research, the findings and what they mean, and what action to take