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oee [108]
3 years ago
12

Schultz et al (1980) assessed the intelligence of 100 young and 100 older people (average age was about 20 years and 64 years re

spectiv ely). They found declines in certain kinds of intelligence and spontaneous flexibility with age.
(a) Identify the independent and dependent variables in this study. (b) Did they use a longitudinal or crosssectional design? Briefly explain your answer.​
Advanced Placement (AP)
1 answer:
kolbaska11 [484]3 years ago
6 0

Answer:

a. <em>Independent - </em>age; <em>Dependent - </em>intelligence

b. Cross-sectional

Explanation:

Scientific experiments label the variables that they employ in two ways: dependent and independent. Independent variables are those that are changed or manipulated by the researchers. In this case, the researchers are exercising control over the variable of age by selecting a particular type of people. This also means that the researchers believe this variable to have a direct effect on the dependent variable.

On the other hand, dependent variable refers to the variable being tested and measured. It receives this name because the variable is "dependent" on the independent variable. In this case, intelligence is the variable that is believed to depend on age.

Finally, this is also an example of a cross-sectional study. Cross-sectional studies interview different samples of people at a particular point in time. This allows us to have a snapshot of a group at a particular moment. This is different from longitudinal studies, which follow the same sample of people over a long period of time.

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a) The dependent variable is defined as the variable that is being tested. The dependent variable here is the percentage of children who collected extra candy.

b) The data does not support the hypothesis 1 of the psychologist which states that the children would take more candy when they were alone. In the graph, percentage of children that took extra candy was higher when they were in group than when they were alone.

The data supports the hypothesis 2, which states that the children would take more candy when they were masked. From the graph, the percentage of children who took extra candy was higher when they were masked than when when they were unmasked.

c) The psychologist cannot generalize her findings to all children because she didn't use a random sampling procedure and she used children only from her neighborhood which doesn't represent the general population of children.

d) This study is not a naturalistic behaviour because the psychologist is dealing with subjects. She may also choose to manipulate the variables. Therefore we cannot call this study a naturalistic behaviour.

e) Modeling: This may play a role in the children's behaviour because the children may try to imitate what others did. The children may take extra candy because they saw others collecting extra candy.

Deindividuation: Here, the children's behaviour may be influenced by a feeling of anonymity. The children may take extra candy because they feel anonymous. Deinvuduated children feel anonymous due a feeling of loss of identity.

This explains why the percentage of chidren who took extra candy when in group was higher than that of the children who were alone.

Note: The graph is attached

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