Experimental
A testable prediction, theory.
What is a hypothesis?
A symmetrical, bell-shaped curve that describes the distribution of data where the scores/measurements are centered around the mean and the two sides are symmetrical.
What is a normal curve?
A non-experimental technique for obtaining the self-reported attitudes or behaviors of a particular group. Typically through questioning a sample of the group.
What is a survey?
Providing potential participants enough info about a study to make an educated decision about participation.
What is informed consent?
What is a non-experimental technique of observing and recording behavior in naturally occurring situations.
What is naturalistic observation?
When both the research participants and the research staff are unaware of which participants are the control or the treatment subjects.
What is a double-blind procedure?
A computed measure of how much scores vary around the mean.
What is a standard deviation?
A research method that relies on numerical data.
The tendency for extreme or unusual scores to move back towards the average.
What is regression toward the mean?
Who are scientific experts who evaluate a research article's theory, originality and accuracy?
Who are peer reviewers?
What is a placebo?
The most frequently occurring score in a distribution.
What is the mode?
A non-experimental technique in which one individual or group is studied in depth.
What is a case study?
A flawed sampling process that produces an unrepresentative sample.
The extent to which a test or experiment measures or predicts what it is supposed to.
What is validity?
A factor in an experiment other than the factor being studied that may influence the results.
What is a confounding variable?
Summarizes or describes the characteristics of a data set.
What are descriptive statistics?
A research method that relies on in-depth, narrative data.
What is qualitative research?
When people respond in a study in ways they presume a researcher expects or wishes.
A graphed cluster of dots, each of which represents the values of two variables. The slope suggests the relationship between the variables.
What is a scatterplot?
The factor in an experiment that is manipulated.
What is an independent variable?
Perceiving a relationship where none exists, or perceiving a stronger-than-actual relationship.
What is illusory correlation?
What is meta-analysis?
A sample that fairly represents a population because each member has an equal chance of inclusion.
What is a random sample?
A carefully worded statement of the exact procedures used in a study.
What is an operational definition?