21-Professor Trainor often collects data using a pre-formulated written set of questions to which respondents record their answers, usually within rather closely defined alternatives. What kind of tool is that?

Select one:

a. box-score set

b. balanced checklist

c. interview guide

d. questionnaire

e. sequence record

22-Focus group participants respond to open-ended questions. A research assistant makes notes of participant responses in narrative form (i.e., in words). Those notes provide which type of data?

Select one:

a. secondary

b. qualitative

c. causal

d. quantitative

e. moderator

23-A product-design researcher may use a concealed observation methodology. Which of the following factors are most important to balance?

Select one:

a. Recoding and ethics

b. Authenticity and encoding

c. Authenticity and ethics

d. Reactivity and recoding

-Answer if you're 100% sure about the answers, please! -Just the Correct Letters, without any explanation at all, please, and I'll put a like