key terms paper 1

Question 1

aim

Answer 1

general statement that describes purpose of invetsigation

Question 2

independent variable (IV)

Answer 2

the variable (thing) the researcher is controlling, and changed in each condition.

Question 3

dependent variable (DV)

Answer 3

variable the researcher measures, affected by the independent variable

Question 4

hypothesis

Answer 4

statement which predicts the outcome of an investigation

Question 5

alternative / experimental hypothesis

Answer 5

prediction on the effect of IV on the DV, relationship between them

Question 6

null hypothesis

Answer 6

no relationship between variables

Question 7

directional hypothesis

Answer 7

predicts the direction of the difference or relationship (past research)

Question 8

non directional hypothesis

Answer 8

predicts there is a difference but doesnt say the direction of differences.

Question 9

labatory

Answer 9

well controlled lab study with a controlled IV and environment

Question 10

field

Answer 10

natural environment controlled IV

Question 11

natural

Answer 11

natural environment, no controlled IV

Question 12

strengths of labatory

Answer 12

-high levels of control
-less extraneous variables
-high internal validity

Question 13

weakness of labatory

Answer 13

-less ecological validity
-less external validity
-less real world application
-demand characteristics

Question 14

strength of field

Answer 14

-more ecological validity due to natural environment
-higher levels of real world application

Question 15

weakness of field

Answer 15

• more extraneous variables
  -less control

Question 16

strength of natural

Answer 16

-high ecological validity
-high application

Question 17

weakness of naturall

Answer 17

-extraneous variables
-low control

Question 18

quasi

Answer 18

pre determined IV