STA630 Quiz # 4

Question # 20 of 20 ( Start time: 01:35:18 AM ) Total Marks: 1

Which of the following is NOT an unethical issue?

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Invoicing irregularities

Avoiding legal liability

Misrepresenting results

Seek approval for research



Question # 19 of 20 ( Start time: 01:33:59 AM ) Total Marks: 1

Which of the following is NOT a type of Non-random sampling?

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Cluster sampling

Convenience sampling

Quota sampling

Purposive sampling



Question # 18 of 20 ( Start time: 01:32:38 AM ) Total Marks: 1

Which one of the following is not an assumption of science?

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There are reoccurring patterns in the world.

Events happen because of preceding causes.

We can discover solutions to problems of interest.

Theoretical explanations must agree with common sense.



Question # 17 of 20 ( Start time: 01:32:14 AM ) Total Marks: 1

After a researcher has stated the specific problem to be studied in an experiment, he must then develop a(n):

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Theory

Conclusion

Hypothesis

Summary of the data



Question # 16 of 20 ( Start time: 01:31:34 AM ) Total Marks: 1

Which of the following is the best hypothesis statement to address the research question, "What impact will the new advertising campaign have on use of Brand B?"

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The new advertising campaign will impact Brand B usage.

The new advertising campaign will increase Brand B trial.

The new advertising campaign will cause increased Brand B usage at the expense of Brand C.

The new advertising campaign will increase Brand B's market penetration.



Question # 15 of 20 ( Start time: 01:30:13 AM ) Total Marks: 1

A one tailed hypothesis predicts-----------

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The future

The lottery result

The frequency of the effect

The direction of the effect



Setting quotas for hard-to-reach respondents is one way to minimize _______ bias.

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Interviewer

Respondent

Instrument

Sampling



Question # 13 of 20 ( Start time: 01:27:29 AM ) Total Marks: 1

The organization of concepts in sequence from the most concrete and individual to the most general indicates is:

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One that bears no relation to the underlying concept.

An abstract, theoretical definition of a concept.

The degree of abstraction

An operational definition



Question # 12 of 20 ( Start time: 01:26:04 AM ) Total Marks: 1

What is the purpose of a control group?

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Make the experiment easier to analyze

Show the value of the dependent variable when the independent variable is not being manipulated

To be able to better evaluate the effect of the independent variable

To control all variables



Question # 11 of 20 ( Start time: 01:24:42 AM ) Total Marks: 1

A measure has high internal consistency reliability when:

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Multiple observers make the same ratings using the measure.

Participants score at the high end of the scale every time they complete the measure.

Multiple observers obtain the same score every time they use the measure.

Each of the items correlates with other items on the measure.



Question # 10 of 20 ( Start time: 01:24:22 AM ) Total Marks: 1

The purpose of a literature review is to:

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Help you find out what is already known about this area.

Identify any inconsistencies or gaps in the literature.

Demonstrate an awareness of the theoretical context in which the current study can be located.

Find what is already known, identify gaps demonstrate awareness.



Question # 9 of 20 ( Start time: 01:23:17 AM ) Total Marks: 1

The extent to which we can generalize the results of a study to other participants is called:

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Sampling validity

External validity

Construct validity

Internal validity



Question # 8 of 20 ( Start time: 01:21:56 AM ) Total Marks: 1

Why, as scientists, do we not want to rely on authority for explanations?

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Those in authority are often wrong.

Those in authority cannot be challenged.

Those in authority rely too much on objective information.

Those in authority often have no common sense.



A ________ scale only assigns numbers to objects to classify the objects according to the characteristic of interest.

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Ratio

Nominal

Interval

Dichotomous



Question # 6 of 20 ( Start time: 01:20:06 AM ) Total Marks: 1

You wish to make a precise estimate about the characteristics of a population of individuals. You should use:

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Quota sampling

Probability sampling

Accidental sampling

Snowball sampling



Question # 5 of 20 ( Start time: 01:19:35 AM ) Total Marks: 1

Conditions favoring the use of a sample over a census include a:

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Long time frame

Small budget

High cost of sampling errors

Low cost of non-sampling errors



Question # 4 of 20 ( Start time: 01:18:15 AM ) Total Marks: 1

A variable is:

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Any characteristic of interest that can take on more than one value

Defined as the groups manipulated in experimental research

The complete set of scores we use in statistical analysis

Completely specified only in observational research



Question # 3 of 20 ( Start time: 01:17:40 AM ) Total Marks: 1

In the statement 'an examination of the effects of discretionary behaviour on employee performance' employee performance is the:

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Independent variable

Dependent variable

Extraneous variable

Causal variable



Question # 2 of 20 ( Start time: 01:16:41 AM ) Total Marks: 1

Which of the following issues should NOT be mentioned in an introductory statement?

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The information will be kept confidential

What the findings of the research are?

Who is funding the research?

Why the respondent has been chosen?



Question # 1 of 20 ( Start time: 01:15:16 AM ) Total Marks: 1

Which measure of dispersion is easiest to calculate? Standard deviation?

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Mean

Range

Median

Mode