PRC Data Quality & Validation 3

Question 1

Which approach to data validation focuses on whether different questions measuring the same underlying concept yield consistent results?

Accepted Answer

Internal consistency validation

Answer

Internal consistency validation checks whether items that purportedly measure the same construct correlate with one another as expected, often assessed via Cronbach's alpha or similar statistics.

Question 2

A quality assurance protocol requires that 10% of completed interviews be re-contacted by a supervisor to verify key responses. This process is known as:

Accepted Answer

Validation callbacks

Answer

Validation callbacks involve re-contacting a subset of respondents after an interview to verify that it was conducted properly and that key data points were recorded accurately.

Question 3

When cleaning secondary data obtained from an external source, researchers should FIRST:

Accepted Answer

Assess the credibility, currency, and methodology of the original data source

Answer

Before using secondary data, researchers must evaluate source credibility, data recency, and the methods used to collect it, since errors or biases in the original source will propagate into the analysis.

Question 4

Which of the following is the MOST appropriate action when an outlier is identified in a quantitative dataset?

Accepted Answer

Investigate whether the outlier represents a data error or a genuine extreme value before deciding how to handle it

Answer

Outlier investigation is essential because an outlier may be a data entry error (should be corrected or removed) or a legitimate extreme observation (should be retained and reported), and the appropriate action depends on the cause.

Question 5

A researcher applies a rule that any respondent who completed a survey in less than one-third of the median completion time is automatically disqualified. This threshold is an example of a:

Accepted Answer

Speeder removal criterion

Answer

A speeder removal criterion sets a minimum acceptable completion time based on median or expected response time, flagging respondents who finished too quickly to have engaged thoughtfully.

(PRC) Professional Researcher Certification Practice Test

(PRC) Professional Researcher Certification Practice Test

PRC Data Quality & Validation 3