Research in Psych

the process of assessing claims and making judgments on the basis of well-supported evidence

in scientific research, a prediction stated as a specific, testable propsition about a phenomenon

a statement that defines the exact operations or methods used in research

a factor or characteristic that is manipulated or measured in research

numbers that represent research findings and provide the basis for research conclusions

an integrated set of propositions that can be used to account for, predict, and even suggest ways of controlling certain phenomena

the process of watching without interfering as a phenomenon occurs in the natural enviroment

a research method involving the intensive examination of some phenomenon in a particular individual, group, or situation

a research method that involves giving people questionnaires or special interviews designed to obtain descriptions of their attitudes, beliefs, opinions, and intentions

a research method that examines relationships between variables in order to analyze trends in data, to test predictions, to evaluate theoriesm and to suggest new hypotheses

a situation in which the researcher manipulates one variable and then observes the effect of that manipulation on another variable, while holding all other variables constant

in an experiment, the group that revieces the experimental treatment

in an experiment, the group that receives no treatment or provides some other baseline against which to compare the performance or response of the experimental group

the variable manipulated by the researcher in an experiemtn

in a nexperiment, the factor affected by the independent variable

in an experiment, any factor that affects the dependent variable, along with or instead of the independent variable

in an experiment, a confounding variable in which uncontrolable factors affect the dependent variable, along with or instead of the independent variable

the procedure by which random variables are evenly distributed in a nesperiment by putting participants into various groups through a random process

a physical or psychological treatment that contains no active ingredients but produces an effect because the person recieving it blieves it will

a congoudning variable tha occurs when an experimenter unintentionally encourages participants to respond in a way that supports the hypothesis

a research design in which neither the experimenter nor the participants know who is in the experimental group and who is in the control group

the process of selecting participants who are members of the population that the researcher wishes to study

a group of research participants whose characteristics farily reflect the characteristics of the population from which they were selected

a group of research participants selected from a population whose members all had an equal chance of being chosen

a group of research participants selected from a population each of whose members did not have an equal chance of being chosen

the study of how genes and enviroments affect behavior

numbers that describe and summarize a set of reseach data

a set of mathematical procedures that help researchers infer what their data might mean

a measure of central tendency that is the value or score that occurs most frequently in a data set

a measure of cental tendency that is the halfway point in a set of data

a measure of cental tendency that is the arithmetic average of the scores in a set of data

a measure of variablity that is the difference between the highest and the lowest values in a data set

a measure of variability that is the average difference between each score and the mean of the data set

in research, the degree to which one variable is related to another

a statistic, r, that summarizes the strength and direction of a relationship between two variables

a term used to describe research results when the outcome of a statistical test indicates that the probabilty of those results occuring by chance is small