QMB 6
____ contains each variable in the study and specifies the application of mapping rules to the response codes of each variable.
A coding scheme
Which of the following statements correctly identify and describe the key elements of a relational database? 1. A table in a relational database is a two-dimensional grid that contains actual data. 2. A field or a column represents a characteristic of a physical object, an event, or a person. 3. A relational database includes software tools for advanced data visualization. 4. A tuple or a record in a table represents a physical object, an event, or a person.
Statements 1, 2, and 4 are correct. Advanced visualization is not a key component of a relational database.
Which of the following statements about entity-relationship diagrams (ERDs) are correct? 1. An entity usually represents persons, places, things, or events about which we want to store data. 2. A foreign key is an attribute that uniquely identifies each instance of the entity. 3. A composite key is a key that consists of more than one attribute. 4. A relationship between entities represents certain business facts or rules.
Statements 1, 3, and 4 correctly describe ERDs. Statement 2 incorrectly describes a foreign key.
What process converts data gathered by secondary or primary methods into data for examination.
data entry
_____ involves a systematic, objective approach to code message characteristics so a researcher can treat diverse textual or verbal content quantitatively.
Content analysis
Which of the following statements correctly describe the data wrangling process? 1. Data wrangling is the process of retrieving, cleansing, integrating, transforming, and enriching data. 2. Data wrangling is the process of defining and modeling the structure of a database to represent real-world events. 3. The objectives of data wrangling include improving data quality and reducing the time and effort required to perform analytics. 4. Data wrangling focuses on transforming the raw data into a format that is more appropriate and easier to analyze.
Statements 1, 3, and 4 correctly describe data wrangling. Statement 2 describes a data modeling process.
Which of the following statements about data warehouses and data marts are correct? 1. A data warehouse is a subset of the enterprise database that focuses on one particular subject or decision area. 2. The dimension table describes business dimensions of interest such as customer, product, location, and time, while the fact table contains facts about the business operation. 3. A star schema represents a multidimensional data model. 4. A data warehouse is the central repository of data from multiple departments within a business enterprise to support managerial decision-making.
Statements 2, 3, and 4 correct. Statement 1 describes a data mart.
Which type of relationship―one-to-one (1:1), one-to-many (1:M), or many-to-many (M:N)―do the following business rules describe? a. One manager can supervise multiple employees, and one employee may report to multiple managers. b. A business department has multiple employees, but each employee can be assigned to only one department. c. A company can have only one CEO, and each CEO can work for only one company. d. An academic adviser can work with multiple students, but each student is assigned to only one adviser. e. A golf court offers a membership to many members, and a golfer can potentially sign up for a membership at multiple golf courts. f. A soccer team consists of multiple players, while an individual player can play for only one team at a time.
a. M:N b. 1:M c. 1:1 d. 1:M e. M:N f. 1:M
Without _____, we would have data that was incapable of being analyzed in any systematic way.
data entry
Because individuals have busy lives, even those who have committed to participation in a survey may need _____.
participant reminder(s)
The decision that indicates the researcher has addressed all known measurement instrument problems is _____.
survey activation
When the survey process is as error-free as the researcher can make it, the researcher makes which of the following critical decisions?
survey activation
Training of survey interviewers includes all of the following EXCEPT _____.
using body language to provide emphasis
