Tuesday, January 19, 2010

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? 
Select correct option:

            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?
Select correct option:

            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? 
Select correct option:

            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): 
Select correct option:

            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?" 
Select correct option:

            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----------- 
Select correct option:

            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. 
Select correct option:

            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: 
Select correct option:

            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?
Select correct option:

            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: 
Select correct option:

            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: 
Select correct option:

            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: 
Select correct option:

            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? 
Select correct option:

            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. 
Select correct option:

            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: 
Select correct option:

            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: 
Select correct option:

            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: 
Select correct option:

            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:
Select correct option:

            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? 
Select correct option:

            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?
Select correct option:

            Mean
            Range
            Median
            Mode


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