Psychology study sheet

28 terms by ilovethisplace 

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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

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