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# Criminal Justice And Criminology (Statistics) MCQ

### _____ is defined as the test used with a two-class, categorical independent variable and a continuous dependent variable.

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### _____ is the type of t test appropriate when the samples are independent and the population variances are unequal.

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### Is repeated-measures design a research strategy used to measure the effectiveness of an intervention by comparing two sets of scores (pre and post) from the same sample?

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### _____ is known as the type of t test appropriate when the samples are independent and the population variances are equal.

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### _____ is defined as hypothesis tests in which the entire alpha is placed in either the upper (positive) or lower (negative) tail such that there is only one critical value of the test statistic. Also called directional tests.

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### _____ is a research strategy where a second sample is created on the basis of each case’s simi- larity to a case in an existing sample.

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### Is independent samples pairs of samples in which the selection of people or objects into one sample in no way affected, or was affected by, the selection of people or objects into the other sample?

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### _____ is known as pairs of samples in which the selection of people or objects into one sample directly affected, or was directly affected by, the selection of people or objects into the other sample. The most common types are matched pairs and repeated measures.

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### Which of the following is NOT a piece of information needed to find the critical value of t, using the t table?

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### When is a two-tailed non-directional hypothesis test used?

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### What point in time are the measurements taken in before/after designs?

Correct Answer: Prior to/after an intervention

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### Which of the following statements is true in independent sampling designs?

Correct Answer: The selection of one sample does not affect that of another.

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### Which of the following is considered a dependent sample t test?

Correct Answer: Matched pairs and repeated measures

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### Which of the following is the proper test to use when the independent samples are divided into groups and the population variances are equal?

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### Which of the following designs is common for evaluating programs?

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### What is the proper statistical distribution for two population tests?

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### Why do dependent samples require different types of t tests than independent samples?

Correct Answer: Because manipulations are necessary with dependent samples

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### Which of the following are considered types of independent sample t tests?

Correct Answer: Shared variance and pooled variance

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### Matched pair designs are used when researchers need experimental and control groups.

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### The independent variable in a t test is continuous.

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### The main types of dependent sample tests are matched pairs and repeated measures.

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