1. Darlene concludes in her thesis that there are significant differences in reading motivation between those children w

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1. Darlene concludes in her thesis that there are significant
differences in reading motivation between those children whose
parents read to them daily and those who did not. There were,
however, no actual differences between these groups. Darlene's
conclusion represents
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b. a Type II error.
a. a Type I error.
d. a correct decision.
c. both a Type I and a Type II error
2. Measures of relative position include
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a. means.
c. percentile ranks.
b. standard deviations.
d. frequency distributions.
3.
As standard error of the mean increases
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b. sample mean increases.
d. sample mean decreases.
c. sampling error increases.
a. population mean decreases.
4.
Which of the following is NOT a measure of central tendency?
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d. Median
a. Mode
b. Standard deviation
c. Mean
5.
Vincente intends to examine differences between three groups of
district curriculum coordinators that received either no formal
training, a web-based training, or a cooperative group experience
as instruction for the core standards. He tested participants'
knowledge of the standards both before treatment and then after
treatment. Given his design, which of the following analyses should
Vincente conduct?
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b. The t test for nonindependent samples
c. ANCOVA
a. The t test for independent samples
d. ANOVA
6.
As the population standard deviation increases
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a. sampling error decreases.
d. population mean increases.
b. sample mean decreases.
c. standard error increases.
7.
The measure of central tendency used for interval and ratio data
is usually the
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c. mean.
d. median.
b. standard deviation.
a. mode.
8.
Misha is comparing different types of typing instruction. In one
group, he used a classroom-based instructional method, and for the
other group, he used a computer-based training program. After a
six-week treatment, he assessed differences in their typing
ability. Of the following, which is the appropriate test of
significance for Misha to use assuming random assignment and no
pretreatment differences?
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a. The t test for independent samples
c. Analysis of difference scores
d. ANOVA
b. The t test for nonindependent samples
9.
Kari's research study measured the effects of cooperative
learning on learners' ability to solve complex problems. After
scoring the problems and entering the data, her advisor told her
she must have another researcher score the problems. Interestingly,
the scores she gave the participants did not match the scores that
the other researcher gave. Kari's scoring problem is indicative of
a problem with
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c. content validity.
a. internal consistency reliability.
b. inter-rater reliability.
d. consequential validity.
10.
The first decision in selection of an appropriate test of
significance is
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d. to decide if your level of significance is appropriate.
a. to examine sample size
c. to consider the effect size you need.
b. to determine if a parametric or nonparametric test must be
selected