Deck 5 Flashcards
measurement validity
does the instrument measure what it is supposed to measure?
- accuracy
- concept coverage
- systematic error/bias (in measurements)
measurement reliability
does the measurement give the same result when repeated in the same/equal environment?
- precision
- consistency
- random error
measurement reliability
does the measurement give the same result when repeated in the same/equal environment?
- precision
- consistency
- random error
face validity
you judge if your measurement is complete or misses a component or logical links between constructs and measurements
content validity
experts judge if your measurements are complete
concurrent validity
how well does the instrument do compared to others/golden standard?
predictive validity
to what degree does the instrument predict valid forecasts that theory says it should predict?
construct validity
does it relate to other constructs as predicted in your model
hypotheses
made to falsify, an idea about how the world works that can be empirically tested. we use them because they provide focus to our research, a link to theory and a target for falsification. hypotheses come from induction (observation) and deduction (theory)
non-relational hypothesis
statement on the existence/level/condition. a statement that you can break: the tree is 1.5 meter high
correlational hypothesis
states a relationship between variables. states that A is related to B, but not how it is
developmental hypothesis
states a development of one/more variables over time
causal hypothesis
explains the relationship between A and B
other variables than the in- and dependent variable
confounder: is an outside influence that changes the effect of the dependent and independent variable
mediator: indicates the mechanisms. in between x and y
moderator: indicates the interactions: pointed at the arrows between x, mediator, and y
