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| The Process of assessing claims and making judgments on the basis of well-supported evidence |
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| In scientific research, a prediction stated as a specific, testable proposition about a phenomenon |
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| Statements that define the exact operations or methods used in research |
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| factors or characteristics that are manipulated or measured in research |
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| Numbers that represent research findings and provide the basis for research conclusions |
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| An integrated set of propositions that can be used to account for, predict, and even control certain phenomena |
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| The process of selectiong participants who are members of the population that the researcher wishes to study. |
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| A group of research participants selected from a poplulation, each of whose members had an equal chance of being chosen |
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| A group of research participants selected from a population each of whose members did not have an equal chance of being chosen |
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| The process of watching without interfering as a phenomenon occurs in the natural environment |
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| A research method involving the intensive examination of some phenomenon in a particular individual, group, or situation |
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| A research method that involves giving people questionnaires or special interviews designed to obtain descriptions of their attitudes, beliefs, opinions, and intentions |
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| Situations in which the researcher manipulates on variable and then observes the effect of that manipulation on another variable, while holding all other variables constant |
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| The variable manipulated by the researcher in an experiment |
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| In an experiment, the factor affected by the independent variable |
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| in an experiment, the group that receives the experimental treatment |
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| the group that recevies o treatmetn or provides some other baseline against which to compare the pervormance or response of hte experimental group. |
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| In an experiment, any factor taht affects the dependent variable, along with or instead of the independent variable |
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| confounding variables in which uncontrolleed or uncontrollable factors affect the dependent variable, alon with or instead of the independent variable |
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| The procedure by which random variables are evenly distributed in an experiment by putting participants into various groups through random process. |
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| A physical or psychological treatment that contains no active ingredient but produces an effect because the person receiving it believes it will |
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| A confounding variable that occurs when an experimenter unintentionally encourages participants to respond in a way that supports the hypothesis |
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| 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 |
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| Numbers that summarize a set of research data |
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| A set of procedures that provides a measure of how likely it is taht research results came about by chance |
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| A measure of central tendency that is the value or score that occurs most frequently in a data set |
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| Ameasure of central tendency that is the halfway point in a set of data: Half the scores fall above the median, and half fall below it |
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| A measure of central tendency that is the arithmetic average of the scores in a set of data |
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| a measure of variability tha is the difference b/t the highest and lowest values in a data set |
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| A measure of variability that is the average diference b/t each score and the mean of the data set |
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| In research, the degree to which one variable is related to another |
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| A statistic, r, that summarizes the strength and direction of a relationship b/t two variables. |
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| Statistically Significant |
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| A term used to describe the results of an experiment when the outcome of a statistical test indicates that the probability of those results occuring by chance is small |
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| The study of the effect of genes on behavior |
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