Excel VBA Research & Evidence-Based Practice 2

Question 1

Which VBA function returns the number of cells in a range that meet a specific criterion, useful for counting occurrences in research data?

Accepted Answer

CountIf

Answer

WorksheetFunction.CountIf counts cells matching a criterion, making it ideal for frequency analysis in research datasets.

Question 2

When automating data import from multiple CSV research files, which VBA method opens a text file for reading?

Accepted Answer

Open ... For Input

Answer

Open filename For Input As #n opens a text file in read mode so VBA can parse CSV research data line by line.

Question 3

A researcher needs to remove duplicate survey responses automatically. Which Excel object method achieves this in VBA?

Accepted Answer

Range.RemoveDuplicates

Answer

Range.RemoveDuplicates removes duplicate rows based on specified columns directly from a VBA procedure.

Question 4

To validate that all entries in a research dataset column are numeric before analysis, which VBA function should you use?

Accepted Answer

IsNumeric

Answer

IsNumeric returns True if the argument can be evaluated as a number, allowing pre-analysis data validation.

Question 5

Which VBA approach is best for iterating through an unknown number of data rows in a research spreadsheet?

Accepted Answer

Do While Cells(i,1) <> ""

Answer

Do While Cells(i,1) <> "" dynamically stops at the last row of data without hardcoding row counts.

Excel VBA Practice Test