Tommy Is Repeating a Series of Digits in the Order

question 7

Multiple Choice

Tommy is repeating a series of digits in the order in which he heard an experimenter read them.The experimenter is testing the capacity of Tommy's _____ memory.Tommy should be able to repeat about _____ digits correctly.

• A) short-term;4
• B) short-term;7
• C) sensory;4
• D) sensory;7

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Definitions:

Critical Value Approach

A method of statistical testing which involves comparing the calculated value of a test statistic to a critical value to decide whether or not to reject the null hypothesis.

Null Hypothesis

A statement used in statistics that proposes there is no significant difference or effect, serving as the default assumption to be tested against an alternative hypothesis.

Test Statistic

A statistic (a function of the data) used in statistical hypothesis testing to decide whether to reject the null hypothesis.

P-value Approach

A method in hypothesis testing that uses the p-value, the probability of obtaining test results at least as extreme as the observed, under the assumption the null hypothesis is true.