Question

i need correct answer

An educational psychologist is studying an exemplary elementary school in Reno to understand why it is so good. Which study design was most likely used for this research?

  

survey

   

experiment

   

naturalistic observation

   

case study

2:

To study the potential effects of social interaction on problem solving, some research participants were instructed to solve problems working together; other participants were told to solve problems working alone. Those who worked together were assigned to the ________ group.

  

control

   

experimental

   

correlational

   

survey

A negative correlation between degree of wealth and likelihood of suffering from a psychological disorder would indicate that

  

people who are poor are more likely to have a psychological disorder than are wealthy people.

   

poverty makes people vulnerable to psychological disorders.

   

People who are poor are less likely to have a psychological disorder than are wealthy people.

   

psychological disorders usually prevent people from accumulating wealth.

Which of the following correlation coefficients expresses the strongest degree of relationship between two variables?

  

-.81

   

.16

   

.65

   

1.69

The American Society for Microbiology (ASM) reported that slightly over three-quarters of men and women (77 percent) actually washed their hands in public restrooms. (This represented a 6 percent decline from a similar study conducted two years earlier in 2005.) Which study design was most likely used for this research?

  

experiment

   

naturalistic observation

   

survey

   

case study

Answer 1

Answers:

1) c. naturalistic observation ( In this study educational psychologist was went to exemplary elementary school to observe the goodness of that school. Here exemplary elementary school was natural location. That's why it is considered as naturalistic observation)

2) b.experimental ( In this case social interactions are the independent variable. This independent variable was given to worked together group. That's why this group is called the experimental group)

3) a. people who are poor are more likely to have a psychological disorder than are wealthy people.

4) a. -.81 ( Correlation coefficient takes place in between -1 and 1. The coefficient which is very close to either -1 or 1 considered as strongest correlation. That's why -.81 is the strongest correlation coefficient.)

5) c. survey ( Washing hands in public restrooms is a habit of people. We can't find out this by conducting the experiment. We can't observe each and every person by naturalistic observation. The case study doesn't possible. That's why the survey is the more likely used for the research)