Chapter 1 Flashcards
variable
something that can change and be measured
replication
repeating an experiment or research study
experimental group
treatment group; received an intervention
case study
a descriptive technique in which one individual or group is studied in depth in the hope of revealing universal principles
critical thinking
examine assumptions, evaluates the source, finds hidden values, evaluates evidence, and assess the conclusion; NOT just “believing something because someone said so”
operational definition
carefully worded statement of the exact procedures used in a research study
survey
self-reported attitudes or behaviors of a group
population
everyone in the group being studied; bigger than a sample
regression toward the mean
extreme scores tend to fall back to average
double blind procedure
the researcher and the participants do not know who is in the experimental group and who is in the control group.
placebo effect
any experimental results caused by expectation because the participant did not receive any active treatment, but believed he/she did
debriefing
giving an explanation of the study after the experiment is over
range
difference between the highest and lowest score
theory
general explanation using an integrated set of principles that organizes observations and predicts behavior
hypothesis
testable prediction based on a theory