Question

You should present a cogent argument based on your critical analysis of the questions posed, using appropriate psychological terminology. It is not enough to answer a question by merely listing facts.
Marnie works at a supermarket. Marnie notices that children in the supermarket often misbehave while shopping with a caregiver, and she decides to conduct an experiment to determine whether supermarket personnel can do anything to discourage the behavior. She recruits friends to serve as data collectors but makes a point not to share her hypothesis with them. One Friday from 12:00 P.M. to 2:00 P.M., one of her research team members offers a small piece of candy to every fifth child who comes through the door with a caregiver. The child must be small enough to be placed in a shopping cart. Another team member follows and monitors the child for the occurrence of misbehaving (operationally defined as instances of screaming, loud crying, or grabbing inappropriately at merchandise or people). On the following Sunday from 12:00 P.M. to 2:00 P.M. Marnie dispatches a research team member to follow every fifth child in the targeted age range (young enough to fit in a shopping cart), but they were not to offer candy or intervene in any way. She will compare the degree to which children act out and disturb other shoppers in the two conditions. Her belief is that by distracting the child with sugar, the child will act out less. When she tallies the number of misbehaviors, she is surprised to discover that the children who received candy actually had more instances of misbehavior than those who did not.

RESULTS OF THE CANDY CONDITION

Child 1 2 3 4 5 6 7 8 9 10
Number of Misbehaviors 3 2 3 8 3 4 4 3 1 0
RESULTS OF THE NO-CANDY CONDITION

Child 1 2 3 4 5 6 7 8 9 10
Number of Misbehaviors 0 0 1 1 4 2 2 0 1 1


Identify the independent variable.
Describe Marnie’s strategy for subject assignment.
Describe one extraneous variable and how Marnie controlled for this particular variable.
Describe one ethical challenge in the execution of Marnie’s project.
Identify the mode in the candy condition.
Calculate the range in the no-candy condition.
Explain how authoritative parenting styles could affect children's behavior in the supermarket.

Answer 1

Answer:

candy and no-candy condition

Marnie's strategy used researchers to find out the number of misbehaviors among the children( little enough to fit in shopping cart). She tries to pick chilren randomly by picking out every fifth child who is little enough to fit in cart for her research. She limits her research to certain age group.

Age group is the extraneous variable in the experiment

Ethical challenge: The researchers followed the child. So they had to be careful

mode in candy condition: 3

range in no candy condtion is 3

They can reduce number of mis-behaviors by disciplining them.

Explanation:

Independent variable: Candy and no-candy condition.

Her strategy is to pick chilren randomly so she directs researchers to pick every fifth child. She also restricts her research to a certain age group. The age group is restricted by making sure that child is small enough to fit in shopping cart.

age group. She controlled this by making sure children were small enough to fit in shopping cart.

The researchers followed the child around the store which is unethical. They must have been careful not to get noticed.

range in no-candy condition: 4-1=3

authoritative parenting help to discipline the children