LESSON 10 Flashcards
the extent to which the measurements used, often questionnaires, actually test the hypothesis or theory
construct validity
when people’s responses reflect, their ‘perceptions become part of the treatment’ construct under study
reactivity to the study situation
a ‘similar threat stems’ from the researcher’s influence on participant responses through subtle communication about desired outcomes
researcher expectancies
when treatment is new, participants and ‘‘research agents ALIKE might alter the behavior’’
novelty effects
Used to support inferences about whether relationship exists
Statistical Method
Refers to the ability to detect true relationships among variables
Low statistical power
The control of extraneous variation through homogeneity is essy to use
Restriction of range
Concerns the extent to which the implementation of an intervention is faithful to its plant
Unreliable implementation of a treatment