After Careful Ethical Review of Planned Procedures, a Researcher Tests

question 101

Multiple Choice

After careful ethical review of planned procedures, a researcher tests a new brain activation drug by taking a sample of 50 volunteers and randomly assigning 25 participants to the treatment condition and 25 to the control (placebo) condition.She then carries out an fMRI scan to assess the level of activation in regions of the participants' brains 30 minutes after administering the drug.She carries out a between-participants t-test in SPSS which provides the output shown below: Which of the following statements is false?

• A)An F value of .000 is significant with an alpha level of .001.
• B)The probability is .036 that the difference between conditions is due to chance.
• C)The probability is .036 that the differences between conditions could be produced by a random process of selecting two groups of 25 people from that population.
• D)Both (a)and (b).
• E)All of the above.

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Definitions:

Quantity Variance

The difference between the expected and actual amount of materials or products used in production, affecting cost and efficiency.

Standard Quantity

The amount of materials or resources that should be used for the production of a good or service under normal conditions.

Cost Variance

The difference between the actual cost incurred and the expected cost, based on standard costing or budgeted amounts.

Standard Cost

A predetermined cost of manufacturing a single unit or a number of units of a product, which is used for budgetary and cost control purposes.