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Psychology study sheet

STUDY
PLAY
hypothesis
a prediction or assumption about behavior that is tested through scientific research
double-blind study
a study in which both participants and experimenters are unaware of who has obtained the treatment
naturalistic observation
the study of behavior in naturally occurring situations without manipulation or control on the part of the observer
volunteer bias
this can slant the results of a survey because people who participate in research studies often differ from people who do not
negative correlation
stress and health are thought to have this since stress goes up as health deteriorates, or goes down
target population
the entire group that you want to study or describe
variable
factors that can change or vary in an experiment
dependent variable
in an experiment, the factor that is being measured and that may change in response to manipulations of the independent variable
longitudinal method
a research method in which participants do not know whether they are receiving the treatment or not
control group
the group in which participants do now know whether they are receiving the treatment or not
experiment
a controlled scientific procedure to determine whether certain variables manipulated by the researcher have an effect on other variables
random sample
a survey population, selected by chance, which fairly represents the general population
case study
an in depth investigation of an individual or small group
positive correlation
the need for achievement and salaries are thought to have this since as one goes up, so does the other
ethics
the standards for proper and responsible behavior
informed consent
an agreement by an individual to paricipate in research agter receiving information about the purpose of the study and the nature of the treatment
single blind study
a study in which the participants are unaware of whether they are in the control group or the experimental group
replicated
the findings of a study must be this before it can be confirmed
controlled experiment
this type of experiment uses both control and experimental groups
cross sectional method
this type of study is done as researchers select a sample that includes people of different ages
experimental group
in a study, the participants who receive the treatment
stratified sample
a sample drawn in such a way that known subgroups within a population are represented in proportion to their numbers in the general population
independent variable
the factor that researchers manipulate so that they can determine its effect
laboratory observation
the study of behavior in a controlled situation
survey
people are asked to respond to a series of questions about a particular subject
placebo
the substance or treatment that has no effect apart form a persons belief in it
correlation
the measure of how closely one thing is related to another
sample
part of the target population that you want to study