. _____ studies allow us to make predictions about one variable based on the knowledge of another.
What is correlation?
100
In an experiment, the _____ group receives no manipulation.
What is control?
100
_____ is a phenomenon in which researchers’ hypotheses lead them to unintentionally bias the outcome of a study.
What is experimenter expectancy effect?
100
The application of mathematics to describe and analyze data is known as
What is statistics?
200
. _____ is the extent to which a measure assesses what
What is validity?
200
Correlational research designs are NOT appropriate for purposes of
What is causation?
200
The group that receives the manipulation is called the
What is experimental group?
200
The best way to avoid the placebo effect in research is to:
What is keep the participants “blind” as to which participant group they are in?
200
Numerical characterizations that describe data are known as
What is descriptive statistics?
300
A correlation coefficient will always range between
What is -1.0 to +1.0
300
The only research design that allows one to make cause-and-effect inferences is the _____ design.
What is experimental?
300
The _____ variable is what the experimenter “manipulates” or varies.
What is independent?
300
In an experiment, a researcher wants to avoid the presence of
What is confounding?
300
This simplest measure of variability is the
What is range?
400
A graph that can be used to represent the pattern of relationship between scores from two variables is called a
What is scatterplot?
400
A key aspect of an experiment that is missing in other research designs is
What is random assignment?
400
The variable that an experimenter measures to determine whether or not the manipulation has had an effect is the _____ variable.
What is dependent?
400
A(n) _____ definition in an experiment refers to a working description of what the researcher is measuring or observing in the study.
What is operational?
400
The term statistical significance implies that the results are
What is not likely due to chance?
500
When neither the experimenter nor the participant have any knowledge of the experimental condition to which the participant has been assigned, we say that this is a _____ study
What is double-blind?
500
When neither the experimenter nor the participant have any knowledge of the experimental condition to which the participant has been assigned, we say that this is a _____ study
What is double-blind?
500
When someone experiences harm based solely on the expectation that they will experience harm, this is called the _____ effect.
What is placebo?
500
In psychological research studies, the researcher is required to obtain the participant’s _____.
What is informed consent?
500
If a statistician asks you, his assistant, to calculate the middle score from a data set, he is asking you to determine the value of the _____.