Sample

Question 1

Canli et al

Answer 1

• 10 right-handed female volunteers
• Sampling technique: Volunteer sampling

Question 2

Schachter and Singer

Answer 2

• 185 male students studying introductory psychology at the University of Minnesota
• Sampling technique: Volunteer sampling

Question 3

Dement and Kleitman

Answer 3

• 7 adult males and 2 adult females.
• 5 were studied intensively while other four were minimal. (intent to confirm results on the first 5)
• Sampling technique:

Question 4

Andrade (doodling)

Answer 4

• 40 members of the MRC Applied Psychology Unit
• Between 18 and 55 years
• Sampling technique: Opportunity sampling

Question 5

Laney et al

Answer 5

Experiment 1
- 128 undergraduates at the University of California (77% females)
- Mean age of 20.8 years
- Sampling technique: Volunteer sampling

Experiment 2
- 103 undergraduate students at the University of Washington (received course credit for their time)
- 64 females and 39 males
- Had a mean age of 19.9 years

Question 6

Pepperberg

Answer 6

• An African Grey parrot named Alex
• Sampling technique: Opportunity sampling

Question 7

Bandura et al

Answer 7

• 36 boys and 36 girls
• Stanford University Nursery School students
• Age: 37-69 months (Mean: 52 months)
• Sampling technique: Opportunity sampling

Question 8

Milgram

Answer 8

• 40 males between the ages of 20 and 50, drawn from New Haven and surrounding communities.
• A wide range of occupations and education level represented in the sample.
• They were paid $4.50 for their participation in the experiment and they were told that payment was simply for coming to the laboratory and that the money was theirs no matter what happened after they arrived.
• Obtained by a newspaper advertisement and direct mail solicitation
• Sampling technique: Volunteer sampling

Question 9

Pilliavin

Answer 9

• Passengers travelling on an underground service between Harlem and the Bronx weekdays between 11am and 3pm from April 15 to June 26, 1968
• Total number of participants: 4450 people
• 45% were black and 55% were white
• Mean number of people per car = 43
• Mean number of people in the critical area when staged incident took place = 8.5
• Sampling technique: Opportunity sampling

Question 10

Yamamoto et al

Answer 10

• 5 chimpanzees named Ai, Cleo, Pal, Ayumu and Pan.
• Socially housed at the Primate Research Institute at Kyoto University.
• In each trial, the chimpanzee participants were paired in mother and child pairs. This was because each pair had already demonstrated frequent tool-giving interactions in previous experiments.
• Also, they were familiar with the tool-use tasks used in this study.
• Sampling technique: Opportunity sampling

Question 11

Baron-cohen et al

Answer 11

Group 1
- 15 males with AS/HFA
- Recruited via adverts in the U.K. National Autistic Society magazine
- Sampling technique: Volunteer sampling

Group 2
- 122 normal adults
- Drawn from adult community and education classes in Exeter
- Drawn from public libraries in Cambridge

Group 3
- 103 normal adult students (53 males, 50 females) all studying for undergraduates degrees in Cambridge University
- Have high IQ

Group 4
- 14 randomly selected individuals in the general population who were IQ matched with Group 1

Question 12

Saavedra

Answer 12

9 year old Hispanic boy with button phobia