Statistics - Which of the following is a display of numerical data in rows and columns
Question 11 pts
Which of the following is a display of numerical data in rows and columns of a matrix?
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graph |
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figure |
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histogram |
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table |
Question 21 pts
A frequency distribution shows a(n) ____ on the y-axis and a(n) ____ on the x-axis.
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dependent variable, independent variable |
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frequency, independent variable |
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frequency, dependent variable |
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independent variable, frequency |
Question 31 pts
Which one of the following distributions is probably negatively skewed?
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family income in dollars per year |
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scores on a very difficult test |
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scores on a moderately difficult test |
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scores on a very easy test |
Question 41 pts
A curve that never changes direction is called a(n) ____ curve.
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monotonic |
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nonmonotonic |
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U-shaped |
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inverted |
Question 51 pts
Which one of the following graphs would be used as a preliminary step in correlational analysis?
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bar graph |
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scattergram |
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line graph |
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frequency distribution graph |
Question 61 pts
A bar graph should be used when the
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independent variable is a discrete variable |
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independent variable is a continuous variable |
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dependent variable is a discrete variable |
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depend variable is a continuous variable |
Question 71 pts
The slope of a cumulative record shows
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number of responses |
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rate of responding |
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changes in response rate |
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type of response |
Question 81 pts
Error bars can be misleading when
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data are normally distributed |
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data are skewed |
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different groups have different amounts of variability |
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we conduct true expeiments |
Question 91 pts
Data reduction is
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recording data onto individual data sheets |
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transcribing data from individual data sheets to a summary form |
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performing statistical analysis |
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performing inferential statistics |
Question 101 pts
Before inferential statistics are performed, you should
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Calculate descriptive statistics |
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Represent the data in a table |
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Represent the data in a graph |
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All of the other three options given |
Question 111 pts
The basic idea of validity is that conclusions based on research (are)
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statistically reliable |
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free of experimenter bias |
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correspond to the actual conditions of the world |
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support the researchers hypothesis(es) |
Question 121 pts
Two independent variables are confounded when
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they both vary in the study |
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one varies and one does not |
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their separate effects cannot be tested |
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neither varies in the study |
Question 131 pts
Which one of the following questions is concerned with construct validity?
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Do the results support the researcher's hypothesis? |
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Do the results support the theory behind the research? |
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Are there alternative variables that can be ruled out as potential causes of the behavior or interest? |
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Are the measuring instruments free of error? |
Question 141 pts
External validity refers to the extent to which
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research results can be generalized to other situations |
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the experimenter unintentionally communicates his or her expectations to the participants |
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historical events occurred that accompanied one or more of the experimental treatments |
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the observed relationship is a true cause-effect relationship |
Question 151 pts
When a researcher asks the question, "Have changes in some developmental process within the subjects paralleled the treatment effects?", she is concerned with which oneof the following potential threats to internal validity?
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maturation |
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subject selection |
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regression effect |
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testing effect |
Question 161 pts
Students as a group tend to perform better on the second exam. This is similar to ____, which is a threat to validity
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the regression effect |
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effects of testing |
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history |
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mortality |
Question 171 pts
Which one of the following is not a threat to the internal validity of an experiment?
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maturation |
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regression effect |
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random error |
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mortality |
Question 181 pts
Loss of subjects during the course of a research project usually introduces bias because
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the resulting sample is too small |
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subjects are not lost on a random basis |
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descriptive statistics cannot be used on the resulting data |
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inferential statistics cannot be used on the resulting data |
Question 191 pts
A loose connection between theory and method threatens ____ validity.
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internal |
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external |
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construct |
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statistical |
Question 201 pts
Milgram's famous study (1963) in which people were led to believe that they were administering shocks to other people illustrates the power of obedience and
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evaluation apprehension |
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role demands |
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experimenter bias |
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selection bias |
Question 211 pts
A within-subjects experiment is one in which each subject
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experiences each condition |
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serves as his or her own control |
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experiences only one of the conditions |
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experiences each condition and serves as his or her own control |
Question 221 pts
Skinner emphasized which aspect of control?
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reduction of variability |
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providing a standard of comparison |
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using groups of subjects |
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using statistical control |
Question 231 pts
Which one of the following statements is true about a between-subjects experiment?
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Each subject experiences each condition. |
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Different groups of subjects experience different conditions. |
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Each group of subjects experiences each condition. |
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Each individual experiences a different condition. |
Question 241 pts
Laboratory research, as opposed to field research, is
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the only way to achieve satisfactory experimental control |
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required by government funding agencies |
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better because participants expect formal settings |
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generally preferred because it is easier to achieve control |
Question 251 pts
Which one of the following is not a good general strategy for achieving control in research?
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using a laboratory setting |
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instrumenting the response |
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avoiding designs that require statistical analyses |
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using trained researchers |
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Solution: Statistics - Which of the following is a display of numerical data in rows and columns