experimental method

Question 1

define an aim

Answer 1

developed from theories & are general statements that describe the purpose of an investigation

Question 2

define a hypothesis

Answer 2

statement that’s made at start of study & describes relationship between variables

Question 3

types of hypothesis

Answer 3

• directional
• non-directional

Question 4

define a directional hypothesis

Answer 4

researcher makes clear the difference that’s anticipated between 2 conditions or groups
eg. more, less, faster, slower

Question 5

define a non-directional hypothesis

Answer 5

states there is a difference between conditions or groups of people
(but nature of difference not specified)

Question 6

when is a directional hypothesis used

Answer 6

when theory or findings of previous research studies suggest similar outcome

Question 7

define independent variable

Answer 7

researcher changes or manipulates variable

Question 8

define dependent variable

Answer 8

research measures impact of IV on this variable

Question 9

2 levels of independent variable

Answer 9

• control condition
• experimental condition

Question 10

what must we do to variables in hypothesis to make it testable

Answer 10

operationalise