Module 2 Review Flashcards
What are the components of an operational definition?
-what it is, how it’s measured, when it’s measured, unit of measurement
continuous variable
-infinite values
-typical for height (5.678cm tall)
discrete variable
-finite values within a range
-typical for describing people (not 2.5 people)
critical measure-value
-threshold for statistical significance
-beyond critical point is considered rejection zone
TCPS 2
Tri-Council Policy Statement for ethical research involving humans
cross-sectional study
-observational
-single time
longitudinal
-observational
-descriptive over time
case study
-1 to 3 people
-observational
-looking forward in time (present)
case control study
-observational
-retrospective (back in time)
-comparative
-groups
pre-experimental
-experimental
-no randomization
-small #
quasi-experimental
-experimental
-no true control trial
-may be crossover
randomized control trial (RCT)
-highest level
-randomization
-control groups
-blinding
ethnography
-qualitative
-immersive experience
-observe/interact
phenomenology
-qualitative
-examines experience
grounded theory
-qualitative
-collecting data then developing a theory based on that info
variance
how spread out the values are
standard deviation
dispersion of data relative to its mean
mean? standard deviation? of z-score
mean = 0
standard deviation = 1
type 1 error
-rejection of true null
-state a change, but none occurred
THINK: 1, first option, nothing happens
type 2 error
-failure to reject null
-state nothing changed, but it did
THINK: 2, option 2, something happened
