deck_16742004

Question 1

what does the experimental method involve ?

Answer 1

1. the manipulation of an independent variable
2. measure the effect of dependent variable

Question 2

what is an aim ?

Answer 2

A general statement of what the researcher intends to investigate

Question 3

what does a good hypothesis need to include ?

Answer 3

needs to clearly state the relationship between 2 variables
variables need to be operationalised - made testable/measurable
should be directional or non-directional

Question 4

what is directional hypothesis

Answer 4

predicts the direction in which change is expected to occur

Question 5

what is a non-directional hypothesis

Answer 5

simply predicts change and does not specify direction

Question 6

give an example of a directional hypothesis

Answer 6

there will be a significant increase in the number of food-related words correctly recalled by the participants who are hungry,in comparison with those who are not hungry

Question 7

give an example of non-directional hypothesis

Answer 7

there will be a significant difference in the number of food-related words correctly recalled for participants who are hungry,in comparison to those who are not hungry

Question 8

in what case would you use non-directional hypothesis ?

Answer 8

usually because previous research has been inconclusive,and the specific nature (direction) of the effect of the IV and DV cannot be predicted confidently

Question 9

what is non-directional hypothesis sometimes called and what is the key word used within ?

Answer 9

sometimes called two-tailed and the key word used is difference

Question 10

what is the difference between an IV and a DV

Answer 10

the IV is a variable that is changed to see how it affects something else, whereas the DV is a variable that is being measured/observed

Question 11

define the term independent variable

Answer 11

aspect of the experiment controlled by the researcher, so it’s effect can be measured

Question 12

define the term dependent variable

Answer 12

a variable that can be measured by the researcher.it should be determined by the independent variable

Question 13

define the term operationalisation

Answer 13

clearly defining variables in terms of how they can be measured

Question 14

explain the difference between an aim and a hypothesis

Answer 14

an aim is a general statement indicating the purpose of a study
a hypothesis is a clear, precise and testable statement that states the relationship between two variables

Question 15

what does