AP Psychology 3.2 Research Methods

AP Psychology 3.2 Research Methods. Which of the following examples demonstrates random assignment?

APAP Psychology
AP PsychologyResearch Methods
LanguageEnglish Language
Research MethodsExperimental, Correlational, and Clinical Research
Test PrepAP Psychology

Transcript

00:28

rules need to be understood first the conditions of the experiment need to be

00:33

selected before the random assignment for example dividing groups into

00:36

cucumber eating and carrot eating groups, because that doesn't sound random at

00:40

all once these conditions have been selected we can choose participants from [Participants chosen from groups]

00:44

a large group of people who represent the population and find a way to

00:48

randomly assign them to each group without bias... alright now that we've

00:52

cleared that up let's take a look at our completely insane answer choices

00:55

starting with A.. let's disregard the part where Janine spent four years of her life [Janine inside a post office]

01:02

in a post office and take a look at her selection process.. is at random? Not

01:06

so much as a matter of fact Janine selection process is inherently biased [Janine selects woman from the groups]

01:10

who knows what sort of internalized selection biases were subconsciously

01:14

influencing who she asked to participate yeah we just hope Janine sn't going to

01:19

give her study another shot and spend four more years at the post office.. alright let's check

01:23

in good old Bill next... Bill hasn't actually defined any groups all he's

01:27

doing is asking people to fill out paperwork on their preferences since [Bill with preferences on clipboard]

01:31

he's not randomly assigning anything we can get rid of this option and maybe

01:34

Bill should relax and take in a movie or something..

01:39

well C doesn't cut it either because Anna is simply selecting the first 40

01:44

aardvarks to arrive, seriously she's studying aardvark in cucumber fields [Anna stood in a cucumber field]

01:49

why do we have a feeling Janine, Bill and Anna hang out together anyway waiting

01:55

for the first 40 prevents her selection from being entirely random we can nix

01:59

this answer and hope that our next researcher is a little more normal [Bill, Janine and Anna staring at answer D]

02:03

Jason's experiment isn't what we're looking for either though because it's

02:07

not really random to select a room full of only boys.. that's basically the

02:12

opposite of random it's modnar.. cool word, we should make that a thing

02:17

but we do give Jason points for not standing in a post office for four

02:21

years or studying aardvarjs.. that leaves us with E despite the fact that Jeff has

02:26

spent too much time with Anna and her aardvark he's our right answer he [Jeff with Anna in a field of aardvarks]

02:30

identifies his different groups assigns numbers and then allows the random blind

02:34

selection to determine which aardvark belongs in which group there's no

02:38

possibility for any sort of subconscious selection bias because Jeff himself

02:41

isn't making that decision the randomly selected numbers are way to go Jeff

02:46

maybe stop hanging out with Anna and her friend they don't seem like the best [Anna, Bill and Janine rock climbing]