What is research?
a relatively small group out of the total population under study
sample
A change in a participants illness or behavior that results from a belief that the treatment will have an affect rather than from the actual treatment is called?
The placebo effect
a branch of mathematics concerned with summarizing and making meaningful inferences from collections of data is called
Statistics
when each individual has an equal chance of being represented
random sample
What is the difference between an independent and dependent variable
independent is the one being manipulated
dependent is the result
a ____________ is a way of arranging data so that we know how often a particular score or observation occurs
frequency distribution
What are the three types of correlations
postive
negative
no
What is the difference between a single and double blind experiment
single: the participant is unaware of which participants receive the treatment
Double: the experimenter nor the participant know which participants are receiving the treatment
how do you find the median?
how do you find the mode?
add them all up and divide by how many there are
order least to greatest, the middle number, if you have two add them and divide by 2
the number that occurs the most
longitudinal studies study the same group of people at regular intervals over a period of years
What do cross sectional studies do?
They organize individuals based on age.
What experiment set the stage for ethics to be created?
describe the experiment
Milgram
Shock experiment
What does correlation tell you and not tell you?
Tells you the relationship not the cause and effect
What are the steps of experimental research?
ask a question
form a hypothesis
determine variables
test
compare measurements
interpret results and draw conclusions
explain how psychologists try to avoid the self full-filling prophecy?
single and double blind experiments
The standard deviation is a measure of __________ from the __________
distance, mean