🧠 psychology - hasset 🟡

Question 1

How many males were part of the final sample?

Answer 1

21

Question 2

How many females were part of the final sample?

Answer 2

61

Question 3

How many monkeys were in the wider group of animals (including those not chosen)?

Answer 3

135

Question 4

Where were the monkeys?

Answer 4

The Yerkes primates research station in the USA

Question 5

Why were 14 adults not studied?

Answer 5

They had received hormone treatments

Question 6

Why were 39 young infants not studied?

Answer 6

They could not be reliably identified

Question 7

Describe the housing

Answer 7

• Each natal group enclosed in 25x25 meter outdoor area
• Access to temperature controlled indoor environment
• Water available and standard monkey food given twice a day
• Additional fruit and vegetables once a day

Question 8

How many wheeled toys were there?

Answer 8

6

Question 9

What was the range of length of wheeled toys?

Answer 9

16 to 46 cm

Question 10

What were the wheeled toys?

Answer 10

Wagon, truck, car, construction vehicle, shopping cart, dump truck

Question 11

How many plush toys were there?

Answer 11

7

Question 12

What was the range of length of plush toys?

Answer 12

14 to 73 cm

Question 13

What were the plush toys?

Answer 13

Winnie-the-Pooh™, Raggedy-Ann™, koala hand puppet, armadillo, teddy bear, Scooby-Doo™, turtle

Question 14

How many trials per social group?

Answer 14

7

Question 15

How long was a trial?

Answer 15

25 minutes

Question 16

How were the trials recorded?

Answer 16

Two video cameras

Question 17

How far apart were the two toys placed?

Answer 17

10m apart

Question 18

What was counterbalanced?

Answer 18

Whether the plush or wheeled toy was on the left / right

Question 19

What things were recorded?

Answer 19

• Each animal interacting with a toy
• Specific activities coded with behavioral checklist
• Exact time each activity occured
• Frequency of each behavior
• Record of duration of continuous activities

Question 20

List all the behaviors

Answer 20

• Extended touch
• Hold
• Sit on
• Carry in hand
• Carry in arm
• Carry in mouth
• Drag
• Manipulate part
• Turn entire toy
• Touch
• Sniff
• Mouth
• Destroy
• Jump away
• Throw

Question 21

How many monkeys had fewer than 5 total recorded behaviors and this were not used in the analysis?

Answer 21

14 males and 3 females

Question 22

Percentage of male monkeys preferring wheeled toys vs plush toys

Answer 22

73% - 9%

Question 23

Percentage of female monkeys preferring wheeled toys vs plush toys

Answer 23

39% - 30%

Question 24

Compare the mean duration male monkeys spent with wheeled toys compared to female monkeys

Answer 24

Male, wheeled: 4.76 minutes
Female, wheeled: 1.27 minutes

Question 25

Compare the mean duration male monkeys spent with plush toys compared to female monkeys

Answer 25

Male, plush: 0.53 minutes
Female, plush: 1.49 minutes

Question 26

Compare the mean frequency male monkeys spent with wheeled toys compared to female monkeys

Answer 26

Male, wheeled: 9.77
Female, wheeled: 6.96

Question 27

Compare the mean frequency male monkeys spent with plush toys compared to female monkeys

Answer 27

Male, plush: 2.06
Female, plush: 7.97

Question 28

How was magnitude of preference calculated?

Answer 28

Frequency of wheeled toy interaction - Frequency of plush toy interaction

(the other way round for females)

Question 29

How were monkeys distributed by rank?

Answer 29

Equally

Question 30

How did rank and total frequency of interactions correlate?

Answer 30

For males and females combined, it was positively correlated for both toys

For just males, it was not correlatred

For females, rank was positively correlated with frequency of interactions for both toys - but rank only correlated with duration for the plush toy

Question 31

How did frequency and duration vary between subadult, adults, adult, and old animals?

Answer 31

It did not

Question 32

When compared with human subjects from Berenbaum and Hines, how did the results vary?

Answer 32

It did not!