Research Meth. Problem&Solution Statistics Vocabulary Potpourri

100

What is naturalistic observation
research method in which the psychologist observes the subject in a natural setting without interfering

100

What is using a single-blind or double-blind experiment
Two ways in which researchers avoid a self-fulfilling prophecy

100

What is a histogram
a graph that uses rectangles to show frequency distribution

100

What is the experimental group
the group to which an independent variable is applied

100

What is a stratified sample
participants are picked to represent proportionally the population that is being studied

200

What is a survey
research method in which information is obtained by asking many individuals a fixed set of questions

200

What is a double-blind experiment
An experiment where the participants nor the experiminters know which participants received which treatment

200

What is a correlation coefficient
a statistic that describes the direction and strencth of the relationship between two sets of data

200

What is a self-fulfilling prophecy
a situation in which a researcher's expectations influence that person's own behavior, and thereby influence the participant's behavior

200

What is standard deviation
a measure of variability that describes an average distance of every score from the mean

300

What is a longitudinal study
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

300

What is a single-blind experiment
an experiment where the participants do not know if they have received the treatment or the placebo

300

What is the mean
On a normal curve, the center of the ranage of scores is represented by this type of central tendency

300

What is frequency distribution
an arrangement of data that indicates how often a particular score or observation occurs

300

What is the hypothesis for the Milgram experiment
If an authority figure is in the room then people will administer painful shocks to others

400

What is a cross-sectional study
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

400

What is a single blind experiment...the "teacher" did not know he was not really administering the shocks
The Milgram experiment was an example of this type of experiment...explain

400

What is range and standard deviation
the two common measures of variance

400

What is inferential statistics
numerical methods used to determine whether research data support a hypothesis or whether results were due to chance

400

What are mean, median, and mode
Measures of central tendency...explain

500

What is a case study
research method that involves an intensive investigation of one or more participants

500

What is the placebo effect
a change in a participant's illness or behavior that results from a belief that the treatment will have an effect, rather than the actual treatment

500

when results are less than 5% due to chance
Researchers' results are said to be statistically significant

500

What is a normal curve
a graph of frequency distribution shaped like a symmetrical, bell-shaped curve

500

What is ethics
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...

Psychological Research Methods and Statistics

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