Identify the variables again and determine which of the three (3) quantitative research data-gathering tools/instruments is appropriate to the variables, and only if said variable needs data-gathering tool/instrument. Directions: Write the letter of your answer sheet.
If the variable does not need data-gathering tool/instrument, just write on the space "not needed".

Statement of the Problem 1

the researcher would like to determine if answering reading exercises can help improve reading comprehension
Independent Variable: ( instrument to be used )
Dependent Variable: ( instrument to be used )

( A. Survey Questionnaire B. Standardized Test
C. Observation Sheet )

Statement of the Problem 2

The researcher would like to determine if prolonged boiling can tenderize beef meat.
Independent Variable: ( instrument to be used )
Dependent Variable: ( instrument to be used )

( A. Survey Questionnaire B. Standardized Test
C. Observation Sheet )

Statement of the Problem 3

The researcher would like to determine which brand of insecticide is the most effective.
Independent Variable: ( instrument to be used )
Dependent Variable: ( instrument to be used )

( A. Survey Questionnaire B. Standardized Test
C. Observation Sheet )

Statement of the Problem 4

The researcher would like to determine which brand of insecticide if educational attainment affects monthly income.

Independent Variable: ( instrument to be used )
Dependent Variable: ( instrument to be used )

( A. Survey Questionnaire B. Standardized Test
C. Observation Sheet )