natural and quasi experiments

Question 1

natural experiments

Answer 1

experimenter hasn’t manipulated IV. “true experiments”.
natural experiment is a experiment with naturally occurring independent variable which is not manipulated by experimenter

however sometimes they can’t manipulate the IV as it’s impossible to manipulate the IV eg make people left handed if right handed.
UNETHICAL to manipulate IV

Question 2

difference between field and natural

Answer 2

“natural” experiment refers to independent variable and not setting

naturalistic setting of environment is FIELD EXPERIMENT

Question 3

quasi experiments

Answer 3

type of natural experiment, contain naturally occurring IV , however in quasi the natural occurring IV is a DIFFERENCE BETWEEN PEOPLE THAT ALREADY EXIST (eg age gender) you’re born with, no one can manipulate.

researcher records effect of “quasi-IV” on a DV

Question 4

strengths

Answer 4

high ecological validity- variables naturally occurring so fines can easily generalised to real life settings.
high external validity

Question 5

strength

Answer 5

high ethical approval - you get to do it in the first place, way of studying effects without being impossible to replicate

Question 6

lim

Answer 6

no casual relationship- no cause and effect as no IV has been manipulated

Question 7

lim

Answer 7

low internal validity - as ur not manipulating IV just study conditions of IV as you find them.

Question 8

lim

Answer 8

not replicable - due to lack of control not manipulating IV, not control certain things etc.
may not be scientific