Home > Statistics (Social And Behavioral Sciences) > Hypothesis Testing in Statistics MCQ

# Statistics (Social And Behavioral Sciences) MCQ

### A researcher obtains z = 3.79 for a one-sample z test. If the researcher decided to retain the null hypothesis, then:

Correct Answer: Both A and B

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### The greater the power, the more likely we are to correctly reject the null hypothesis, if it is incorrect.

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### An effect size of d = 0.18 is a large effect in the population.

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### A Type III error is possible for hypothesis tests where the rejection region is located in both tails.

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### The alpha level is completely different from the p value.

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### One step to hypothesis testing is to compute the test statisti

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### One step to hypothesis testing is to compute the test statisti

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### In one study, it was reported that scores were lower than the population mean, and z = −1.75, p = .05 (d = .14). If this was a test at a .05 level of significance, then what value must be incorrectly reported?

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### In one study, it was reported that scores were lower than the population mean, and z = −1.75, p = .05 (d = .14). If this was a test at a .05 level of significance, then what value must be incorrectly reported?

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### The power in hypothesis testing is:

Correct Answer: The probability of rejecting a false null hypothesis.

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### Given the following values: u = 5.0, M = 6.6, n = 25, and ϭ = 5, conduct a one-sample z test at a .05 level of significance. For a one-tailed test, upper-tail critical, what is the decision?

Correct Answer: To retain the null hypothesis

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### Which of these statements is false?

Correct Answer: A researcher can directly control the probability of a Type II error.

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### Which of these statements is false?

Correct Answer: A researcher can directly control the probability of a Type II error.

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### A researcher studying the development of executive functions in children conducts an experiment and computes a test statisti He finds that the p value for this test is .025. This result means that:

Correct Answer: There is a 2.5% likelihood of obtaining the test statistic value, if the null is true.

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### If the value of the test statistic is in the rejection region, then:

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### The mean for a vocabulary test is 100; a researcher selects a sample to administer this test. In this example, the null hypothesis is:

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### Only one of the following is a step to hypothesis testing.

Correct Answer: Set the criteria for a decision

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### A method for testing a claim or hypothesis about a parameter in a population, using data measured in a sample, is called:

Correct Answer: Both A and B

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### A method for testing a claim or hypothesis about a parameter in a population, using data measured in a sample, is called:

Correct Answer: Both A and B

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### Z Statistic is an inferential statistic used to determine the number of _____ in a standard normal distribution.

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### Type III Error is a type of error possible with _____ in which a decision would have been to reject the null hypothesis.

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### The probability of retaining a null hypothesis that is actually false is known as_____

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### The probability of retaining a null hypothesis that is actually false is known as_____

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### Type I Error is the probability of retaining a null hypothesis that is actually false.

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### Type I Error is the probability of retaining a null hypothesis that is actually false.

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### Type I Error is the probability of retaining a null hypothesis that is actually false.

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### Type I Error is the probability of retaining a null hypothesis that is actually false.

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### _____ are the hypothesis tests in which the alternative hypothesis is stated as not equal to (≠) a value stated in the null hypothesis.

Correct Answer: Both b and c

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### _____ are the hypothesis tests in which the alternative hypothesis is stated as not equal to (≠) a value stated in the null hypothesis.

Correct Answer: Both b and c

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### The value of the test statistic is used to make a decision regarding a _____ hypothesis.

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### When the null hypothesis is retained, we reach Statistical Significance.

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### A method for testing a claim or hypothesis about a parameter in a population, using data measured in a sample is known as_____

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### Significance Level refers to criterion of judgment upon which a decision is made regarding the value stated in a _____ hypothesis.

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### A decision made concerning a value stated in the null hypothesis is known as _____

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### When the value of a test statistic is in the rejection region, we decide to reject the null hypothesis; otherwise, we retain the null hypothesis

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### Power is the probability of rejecting a _____ hypothesis.

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### P Value is the probability of a obtaining a sample outcome, given that the value stated in the null hypothesis is _____

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### One-Tailed Tests are the hypothesis tests where the alternative hypothesis is stated as _____ a value stated in the null hypothesis.

Correct Answer: Both a and b

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### One-Sample Z Test is a statistical procedure used to test hypotheses concerning the mean in a_____ with a known variance.

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### Obtained Value is compared to the _____of a hypothesis test to make a decision.

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### Null Hypothesis is a statement about a population parameter, such as the population mean, that is assumed to be false.

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### Nondirectional Tests are the hypothesis tests in which the alternative hypothesis is stated as _____ a value stated in the null hypothesis.

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### Level of Significance refers to criterion of judgment upon which a decision is made regarding the value stated in a null hypothesis.

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### A method for testing a claim or hypothesis about a parameter in a population, using data measured in a sample is known as_____

Correct Answer: Both a and b

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### Hypothesis is a statement or proposed explanation for_____ that can be tested using the research method.

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### The purpose of Effect Size is _____

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### In hypothesis testing, an effect is not significant when we retain the null hypothesis.

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### Directional Tests are the hypothesis tests where the alternative hypothesis is stated as _____ a value stated in the null hypothesis.

Correct Answer: Both a and b

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### Critical Value is a cutoff value that defines the boundaries beyond which _____ of sample means can be obtained if the null hypothesis is true.

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### Cohen’s Effect Size Conventions are the standard rules for identifying _____ effects based on typical findings in behavioral research.

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### Beta Error is the probability of retaining a null hypothesis that is actually true.

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