Male and female rats were injected first with either cocaine at a dose of 20 mg/kg or a control solution of physiological saline.

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

SPSS Lab Assignment #1

PSY 2012: Statistics for the Social Sciences

Topics Covered: Entering and Saving Data; Performing Descriptive Statistics This assignment requires students to:

1. Input the data shown on page 2 into the SPSS data view spreadsheet;

2. Set up the parameters for each variable column in the spreadsheet via SPSS’s variable view setup screen;

3. Save the data/variable parameters in a file on your flash drive using the file format name LNAME#1.sav (note, “.sav” is the file extension that SPSS uses for data files – SPSS automatically adds this extension therefore there is no need to type  it as part of the file name);

4. In SPSS’s analysis module, calculate the basic statistics shown below for body weight, amount of time spent in the open areas maze, and amount of time spent in the

closed areas of the maze:

a. N

b. minimum score

c. maximum score

d. mean

e. standard deviation

5. Save the calculated statistics output in a file on tour flash drive using the file format name LNAME#1.spv (note, “.spv” is the file extension that SPSS uses for output files – SPSS automatically adds this extension therefore there is no need to type it as part of the file name) 

Data for Lab Assignment #1

The following data are from a fictitious study examining the effects of two drugs of abuse – cocaine and “ecstasy” (which is known by its chemical abbreviation MDMA) in rats on anxiety. Male and female rats were injected first with either cocaine at a dose of 20 mg/kg or a control solution of physiological saline. Half the animals in each group were then injected with either MDMA at a dose of 5 mg/kg or a control solution of saline. The rats were then tested in around maze for their anxiety levels. The round maze has two areas that are walled-in and two areas which do not have walls. If an animal spends most of its 600-second test session in one of the two walled-in areas, it is interpreted to be anxious; if, on the other hand, the animal spends most of its 600-second test session in one of the two non-walled areas it is interpreted not to be anxious.

Attachments:

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