Reaction Time RPA Flashcards
1
Q
How to measure someone’s reaction time
A
- person 1 sits on a stool with upright posture
- person 1 places forearm of dominant arm across table with their hand overhanging the edge
- person 2 hold ruler vertically
- 0cm mark should be between person 1s thumb and first finger
- person 2 tells 1 to prepare to catch ruler
- 2 randomly drops ruler
- 1 catches ruler
- 2 records measurement that’s level with top of 1s thumb
- repeat and workout mean
2
Q
Define the independent variable
A
Changes
3
Q
IV of test
A
Person having their reaction time tested
4
Q
Define dependent variable
A
Measured
5
Q
DV if test
A
The reaction time
6
Q
Define control variable
A
Ones that aren’t allowed to change
7
Q
CV of test
A
Starting distance between thumb and first finger should be kept at constant
8
Q
Other IVs we could investigate
A
- effect of practice
- whether reaction time depends on hand catching ruler
- whether chemicals affect reaction time
