2. variables and control

Question 1

controls

Answer 1

ways to keep a potential uncontrolled variable constant, raising validity

Question 2

variables

Answer 2

factors that change or can be changed in an experiment

Question 3

IV

Answer 3

what we manipulate/change

Question 4

DV

Answer 4

what we measure as a result

Question 5

uncontrolled variable

Answer 5

any variables that affect the DV that isn’t the IV

Question 6

if a study has an uncontrolled variable?

Answer 6

lowers validity, less confidence in results

Question 7

controlled variable

Answer 7

a variable that is standardised/controlled in all the conditions/levels of the IV

Question 8

if a study has a controlled variable?

Answer 8

gains confidence in the study

Question 9

standardisation

Answer 9

keeping the research procedures for each ppt exactly the same

Question 10

what does standardisation ensure?

Answer 10

ensures that any differences are due to variables, not due to differences in procedure

Question 11

examples of standardisation

Answer 11

• same instructions
• same environment
• same equipment (to measure DV)

Question 12

benefits of standardisation

Answer 12

increases reliability and validity

Question 13

pilot study

Answer 13

‘soft launch,’ preliminary test of the procedures in the study, checks for any affects of uncontrolled variables