B4.045 Prework Data Collection

Question 1

purpose of measurement

Answer 1

used to quantify variables
classify, rank, and statistically test relationships
validity of project hinges on validity of measurement strategy

Question 2

quantitative questions

Answer 2

yes/no

what

Question 3

qualitative questions

Answer 3

why?

how?

Question 4

types of qualitative data collection

Answer 4

interviews
focus groups
oberservation

Question 5

types of interviews

Answer 5

unstructured
semi-structured
structured

Question 6

semi structured interviews

Answer 6

general topics known in advance
broad, open ended questions
usually lead to both qualitative and quantitative analysis

Question 7

method for analyzing qualitative data

Answer 7

create list of codes (ideas) from interview data
-each interview coded independently by 2 people
-resolve discrepancy
collapse/combine codes
identify themes

Question 8

types of quantitative questions

Answer 8

true/false
yes/no
multiple choice
rankings
ratings

Question 9

rankings

Answer 9

participants rank a series of items from most to least important
can’t rank two items the same

Question 10

ratings

Answer 10

can rate things as equal values, unlike rankings

Likert scales common

Question 11

ways to analyze Likert data

Answer 11

ordinal data (distances between responses not measurable and not equal)
medians, frequencies (chi squared)
means if data is normally distributed (t test)

Question 12

question order recommendations

Answer 12

most important at beginning

sensitive a end

Question 13

validity

Answer 13

how accurate is the measure for its intended purpose?

Question 14

reliability

Answer 14

how consistent are results?

Question 15

things to avoid

Answer 15

loaded language
double barreled questions
response categories that influence bias