Unit 0- 0.4

Question 1

a statistical measure of a relationship of 2 factors

Answer 1

correlation

Question 2

a number between -1 and 1 and tells you the correlation relationship between the variables

Answer 2

correlation coefficient

Question 3

a factor that can change depending on the situation

Answer 3

variable

Question 4

a statistical graph that shows the results between the 2 variables

Answer 4

scatterplot

Question 5

perceiving a non-existent relationship

Answer 5

illusory correlation

Question 6

unusual scores or event to fall back

Answer 6

regression towards the mean

Question 7

a research method when the researcher manipulates one or more factors

Answer 7

experiment

Question 8

a group that is exposed to the independent variable

Answer 8

experimental group

Question 9

a group that doesn’t receive any experimental treatment

Answer 9

control group

Question 10

placing random people into 2 different groups

Answer 10

random assignment

Question 11

when participants are ignorant when they receive the independent variable

Answer 11

single-blind procedure

Question 12

when participants and data collectors are ignorant when they receive the independent variable

Answer 12

double-blind procedure

Question 13

experimental results caused by expectations alone

Answer 13

placebo effect

Question 14

doesn’t change from other variables but can be changed from researchers

Answer 14

independent variable

Question 15

changes due to the independent variable

Answer 15

dependent variable

Question 16

an influence on both variables

Answer 16

confounding variable

Question 17

influence of researcher’s expectations and beliefs

Answer 17

experimenter bias

Question 18

when a experiment measures what it’s supposed to do

Answer 18

validity