Exam 22: Inferential Data Analysis

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A research article reports that clients who received Intervention A had a 20% recidivism rate,while clients who received Intervention B had a 30% recidivism rate.What can be inferred from these statistics?

(Multiple Choice)

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Question 21

Two-tailed tests of significance should be used whenever there is a non-directional hypothesis.

(True/False)

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Question 22

When using inferential statistics,we must risk either a Type I error or a Type II error,we cannot avoid risking both.

(True/False)

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Question 23

When a finding is statistically significant:

(Multiple Choice)

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Question 24

A research article reports that 4 of 10 students who received an intervention from a school social worker dropped out of school,while 6 of 10 students in the control group dropped out.The difference was not statistically significant.What can be inferred from these statistics?

(Multiple Choice)

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Question 25

The more statistically significant a finding,the less likely it is to be explained away by extraneous variables or design flaws.

(True/False)

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Question 26

We commit a Type II error when we

(Multiple Choice)

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Question 27

Explain the difference between statistical significance,relationship strength,and substantive significance.

(Short Answer)

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Question 28

If a Cohen's d effect size exceeds .6,the finding is statistically significant.

(True/False)

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Question 29

Risk ratios show the proportion of unsuccessful outcomes in one group divided by the risk of unsuccessful outcomes in the other group

(True/False)

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Question 30

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A research article reports that clients who received Intervention A had a 20% recidivism rate,while clients who received Intervention B had a 30% recidivism rate.What can be inferred from these statistics?

Two-tailed tests of significance should be used whenever there is a non-directional hypothesis.

When using inferential statistics,we must risk either a Type I error or a Type II error,we cannot avoid risking both.

When a finding is statistically significant:

A research article reports that 4 of 10 students who received an intervention from a school social worker dropped out of school,while 6 of 10 students in the control group dropped out.The difference was not statistically significant.What can be inferred from these statistics?

The more statistically significant a finding,the less likely it is to be explained away by extraneous variables or design flaws.

We commit a Type II error when we

Explain the difference between statistical significance,relationship strength,and substantive significance.

If a Cohen's d effect size exceeds .6,the finding is statistically significant.

Risk ratios show the proportion of unsuccessful outcomes in one group divided by the risk of unsuccessful outcomes in the other group

Why Study Research

Evidence-Based Practice

Philosophy and Theory in Social Work Research

Comparing Quantitative, Qualitative, and Mixed Methods of Inquiry

The Ethics and Politics of Social Work Research

Culturally Competent Research

Problem Formulation

Conceptualization in Quantitative and Qualitative Inquiry

Measurement

Constructing Measurement Instruments

Causal Inference and Experimental Designs

Quasi-Experimental Designs

Single-Case Evaluation Designs

Program Evaluation

Sampling

Survey Research

Analyzing Existing Data: Quantitative and Qualitative Methods

Qualitative Research: General Principles

Qualitative Research: Specific Methods

Qualitative Data Analysis

Quantitative Data Analysis

Inferential Data Analysis

Writing Research Proposals and Reports

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