research method in which the psychologist observes the subject in a natural setting without interfering
What is naturalistic observation
100
A way in which researchers avoid the tendancy to look only for the data that supports their research.
Operationalize definitions
100
The score found most often in a sample.
What is a mode.
100
the group to which an independent variable is applied
What is the experimental group
100
participants are picked to represent the same characteristics of the population that is being studied
What is a representative sample
200
research method in which information is obtained by asking many individuals a fixed set of questions
What is a survey
200
An experiment where the participants nor the experiminters know which participants received which treatment
What is a double-blind experiment
200
a statistic that describes the direction and strencth of the relationship between two sets of data
What is a correlation coefficient
200
The one part of an experiment that is different between groups.
What is an independent variable.
200
a measure of variability that describes an average distance of every score from the mean
What is standard deviation
300
research method in which data is collected about a group of participants over a number of years to assess how certain characteristics change or remain the same during development
What is a longitudinal study
300
an experiment where the participants do not know if they have received the treatment or the placebo
What is a single-blind experiment
300
On a normal curve, the center of the range of scores is represented by this type of central tendency
What is the mean
300
The part of an experiment that measures the results of the variable being tested.
What is the dependant variable.
300
a graph of frequency distribution shaped like a symmetrical, bell-shaped curve
A normal curve.
400
research method in which data is collected from groups of participants of different ages and compared so that conclusions can be drawn about differences due to age
What is a cross-sectional study
400
An experiment that allows you to test changes over time.
What is a longitudinal or cross-sectional study?
400
A common measure of variance
What is range or standard deviation
400
numerical methods used to determine whether research data support a hypothesis or whether results were due to chance
What is inferential statistics
400
Three measures of central tendency are.
What are mean, median, and mode
500
research method that involves an intensive investigation of one or more participants
What is a case study
500
A method of controlling for the effects of an extraneous variable by ensuring its effects are equal in all treatment conditions.
What is counterbalancing
500
Researchers' results are said to be statistically significant
when results are less than 5% due to chance
500
A variable that confuses the researcher as to what is the actual cause of a particular effect.
What is a confounding or extraneous variable.
500
Before starting an experiment researchers are required to submit a plan to a Human Subjects Committee for approval or rejection of the experiment based on...