Psy 201 2
Terms
undefined, object
copy deck
- hypotheses
- specific propositions that follow logically from a theory
- deduction
-
process of reasoning from a general proposition to specific implications of that theory
(deriving from existing theory) - induction
-
abstracting a hypothesis from a collection of facts
(collecting info to allow you to form a hypothesis) - falsifiable
- potential to be found false
- quasi-experimental research
-
use when not able to vary the independent variable
study effects of some variable or event that naturally occurs - identity
- each number has a particular meaning
- magnitude
- numbers have an inherent order from smaller to larger
- true zero
- zero represents a zero level of the variable being measured
- nomaial scales
-
lowest level of measurment
least match their number system
naming scales, only property is identity
chi square
categorical data - ordinal scales
-
measure variables in order of magnitude
do not tell anything about difference in categories
ordered data - interval scales
-
properties of ordinal scales + equal intervals b/w consecutive values on scales
come close to matching number system but no true zero
score data - ratio scale
-
properties of identiy, magnitude, and equal intervals + true zero point
score data - scale attenuation effects
-
restricting range of scale
ceiling effect=no room to show change toward higher scores
floor effect= restricted lower range - chi square
- assess relationship b/w 2 nomial variables
- common causal variables
-
cause both predictor and outcome, thus produce correlation b/w them
spurious relationship=produces and 'explains away' relationship b/w predictor and outcome variables - longitutdal research
- path anaylsis= multiple regression to assess the relationships among number of measured variables