DCF Behavioral Observation and Screening BOSR Exam Study Guide: GRADED A+. Practice Questions and Verified Answers. Latest 2026 Update

DCF Behavioral Observation
and Screening BOSR Exam
Study Guide: GRADED A+.
Practice Questions and Verified
Answers. Latest 2026 Update

,psychology: - CORRECT ANSWER-
the scientific study of behavior research validity: - CORRECT ANSWER-says
that a conclusion from research is only valid when it corresponds to the
true state of the world
-4 types: internal, external, statistical conclusion, and construct


internal validity (part of research validity) - CORRECT ANSWER--is the
experiment really showing causation?
-a study has this if a cause-effect relationship exists
-it is tough to determine if the observed effect was caused only by the
IV...was the DV influenced by

,others? (was the effect real or
artificial)
-threats
--history (events outside of the lab)
--maturation (amount of time between measurements)
--testing (familiarity of the test/measuring)
--attrition/mortality (participants dropping out- can be extraneous
variable!)
--selection (samples must be comparable)
--regression effects (tendency of those who get 1 extreme score to get closer
to the average the next test)
- CONTROLLED BY RANDOM ASSIGNMENT

, extraneous variable - CORRECT
ANSWER-anything other than the IV that influences the DV


external validity - CORRECT ANSWER--does the experiment mirror the
real world accurately?
-can the results of the study be GENERALIZED across different types,
persons, settings, times?
-threats:
--population validity (samples of convenience are often used but how
representative of reality is this?)
--ecological validity (different places- are results specific to that
location?- lab vs. field)
--temporal validity (are results specific to one time?)