Question 1

A collection of characters that represents a single type of data,usually a variable,is called a:

Accepted Answer

A collection of characters that represents a single type of data (usually a variable) is called a field. Option B refers to a collection of data files. Option C refers to a descriptive tag for a data value. Option D refers to a file containing a collection of strings.

Question 2

A collection of related records is known as a:

Accepted Answer

A collection of related records is known as a data file.

Question 3

Valarie's job at a research firm is to transfer data from survey questionnaires to a computer file.Her job is:

Accepted Answer

Valarie's job involves entering data from survey questionnaires into a computer file, which is a clear example of data entry. Data coding involves categorizing data and assigning codes to it, data editing involves reviewing and modifying existing data, and data scanning involves using a scanner to digitize physical documents. None of these other options fit Valarie's job description as well as data entry does.

Question 4

In creating coding categories for open-ended questions,the tallying of the replies to a small number of completed questionnaires for a question in order to create coding categories for that question is known as:

Accepted Answer

Test tabulation is the process of tallying the replies to a small number of completed questionnaires for a question in order to create coding categories for that question. This helps in identifying patterns and trends in the data before conducting a full analysis. Recoding the data involves converting data from one format to another, data entry involves entering the collected data into a computer system, and creating a plug value involves using a placeholder value in cases of missing data.

Question 5

When a phone survey tries to obtain the opinions of registered voters (who need to be age 18+),and the field editor finds an interview in which the respondent was only 17 years old,the field editor should ____________________ this survey.

Accepted Answer

The answer of When a phone survey tries to obtain...

Question 6

A data processing input device that reads material directly from mark-sensed questionnaires is called a(n):

Accepted Answer

An optical scanning system is a data processing input device that reads material directly from mark-sensed questionnaires, making it the correct choice. Direct-entry mode refers to manual data entry by a person, while a verified entry system requires a second person to check the accuracy of the data entered. A tabulation scanning system typically refers to a device used for processing large volumes of forms, such as surveys or election ballots.

Question 7

Which term represents a computer terminology for a series of alphabetic characters (non-numeric characters)that may form a word and is used to represent text variables?

Accepted Answer

A string character is a sequence of characters that are used to represent text variables in computer programming. This term is commonly used in programming languages such as Java and Python. Value labels are used to assign names to categorical variables, a data matrix is a rectangular arrangement of values, and a word matrix is not a commonly used term in computer programming.

Question 8

A collection of related fields that represents the responses from one sampling unit is known as a:

Accepted Answer

A collection of related fields that represents the responses from one sampling unit is known as a record. A file is a collection of records, a code is a symbol or word used to represent a numerical value or concept, and a label is a descriptive tag given to a variable or data point.

Question 9

A survey question asked respondent how much of the Super Bowl they watched by asking them to check one of the four following choices: "all of it," "most of it," "some of it," or "none of it." How many dummy variables would a researcher need to dummy code this question?

Accepted Answer

To dummy code this question, a researcher would need to create 3 dummy variables (D1, D2, and D3). This is because there are 4 possible responses, and we only need 3 dummy variables to represent all possible response categories. The reference category would be "none of it." The dummy variable D1 would represent "some of it," D2 would represent "most of it," and D3 would represent "all of it." Therefore, the correct answer is C.

Question 10

Which of the rules for coding has been violated by the following responses to a question about annual salary?

Accepted Answer

The coding categories should be mutually exclusive, meaning that each response should only fit into one category. In this case, the responses overlap and do not fit into one clear category.

Question 11

When a field supervisor checks data at the end of each day that it is collected to catch technical omissions (e.g.missing responses to questions),this is an example of ____________________.

Accepted Answer

The answer of When a field supervisor checks data at...

Question 12

The process of checking and adjusting data for omissions,legibility,and consistency is known as ____________________.

Accepted Answer

The answer of The process of checking and adjusting data...

Question 13

Which of the following can be used if the researcher knows what answer categories exist before data collection occurs?

Accepted Answer

Precoding is the process of assigning codes or labels to possible answers before data collection begins. This saves time during data entry and analysis as the responses are already pre-specified, allowing for easy tabulation and analysis.

Question 14

Which of the following is an alternative to dummy coding using the values of -1 and +1 to represent two categories of responses?

Accepted Answer

Effects coding is an alternative to dummy coding using the values of -1 and +1 to represent two categories of responses. Effects coding uses the values of -0.5 and +0.5 to represent two categories of responses, thereby avoiding the interpretative difficulties associated with dummy coding. Reverse coding involves reversing the scores of negatively worded items to compute a composite score, while inverse coding is not a statistical technique. Verified coding is not a term used in statistical analysis.

Question 15

In test tabulation,what is the typical percentage of responses from completed questionnaires that a researcher will use to create coding categories?

Accepted Answer

The answer of In test tabulation,what is the typical percentage...

Question 16

A researcher has assigned "1" to represent freshman,"2" for sophomore,"3" for junior,"4" for senior,and "5" for graduate student.These labels (i.e. ,freshman,sophomore,etc. )assigned to the numeric code are called:

Accepted Answer

Value labels are the labels assigned to numerical codes to provide meaning to the data. In this case, the labels "freshman," "sophomore," etc. provide meaning to the numerical codes 1, 2, 3, 4, and 5.

Question 17

When a research organization does the editing of its data using its own staff,this is known as ____________________ editing.

Accepted Answer

The answer of When a research organization does the editing...

Question 18

A question on a survey that has not been answered by the respondent is called a(n)____________________.

Accepted Answer

The answer of A question on a survey that has...

Question 19

The idea that the coding categories applied to a given question should allow all possible answers to the question to receive a code is another way of saying that the coding categories should be:

Accepted Answer

The term "exhaustive" means that all possible answers should be covered by the coding categories. This is in contrast to "mutually exclusive" which means that each answer can only receive one code, or "precoded" which means that the codes have already been assigned in advance. Therefore, the correct answer is C, exhaustiveness.

Question 20

Which of the following means that coding categories have no overlap so that a subject or response can be placed in only one category?

Accepted Answer

Mutually exclusive means that the coding categories have no overlap and a subject or response can only be placed in one category. Exhaustive means that all possible responses or subjects are accounted for in the coding categories. Unique and precoded do not necessarily imply mutually exclusive categories.

Quiz 19: Editing and Coding: Transforming Raw Data Into Information