Module 2 Review

Question 1

What are the components of an operational definition?

Answer 1

-what it is, how it’s measured, when it’s measured, unit of measurement

Question 2

continuous variable

Answer 2

-infinite values
-typical for height (5.678cm tall)

Question 3

discrete variable

Answer 3

-finite values within a range
-typical for describing people (not 2.5 people)

Question 4

critical measure-value

Answer 4

-threshold for statistical significance
-beyond critical point is considered rejection zone

Question 5

TCPS 2

Answer 5

Tri-Council Policy Statement for ethical research involving humans

Question 6

cross-sectional study

Answer 6

-observational
-single time

Question 7

longitudinal

Answer 7

-observational
-descriptive over time

Question 8

case study

Answer 8

-1 to 3 people
-observational
-looking forward in time (present)

Question 9

case control study

Answer 9

-observational
-retrospective (back in time)
-comparative
-groups

Question 10

pre-experimental

Answer 10

-experimental
-no randomization
-small #

Question 11

quasi-experimental

Answer 11

-experimental
-no true control trial
-may be crossover

Question 12

randomized control trial (RCT)

Answer 12

-highest level
-randomization
-control groups
-blinding

Question 13

ethnography

Answer 13

-qualitative
-immersive experience
-observe/interact

Question 14

phenomenology

Answer 14

-qualitative
-examines experience

Question 15

grounded theory

Answer 15

-qualitative
-collecting data then developing a theory based on that info

Question 16

variance

Answer 16

how spread out the values are

Question 17

standard deviation

Answer 17

dispersion of data relative to its mean

Question 18

mean? standard deviation? of z-score

Answer 18

mean = 0
standard deviation = 1

Question 19

type 1 error

Answer 19

-rejection of true null
-state a change, but none occurred
THINK: 1, first option, nothing happens

Question 20

type 2 error

Answer 20

-failure to reject null
-state nothing changed, but it did
THINK: 2, option 2, something happened