Which of the following is not a step or assumption in carrying out an independent groups t-test?
PSYC1040 Tute 11

Quiz
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Science
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University
•
Hard
Joshua Sabio
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
estimating the variance of the population of the distribution of differences between means
assuming the difference between the groups is zero
estimating the standard deviation (standard error) of the distribution of the difference between the means
assuming there is no correlation between score pairs for the two conditions of the study
summing the z-score products
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A computer software company wishes to know whether Microsoft’s Word is better than Apple’s Pages. Eight equally proficient microcomputer operators are randomly divided into two equal groups. One group is given Word and the other is given Pages. The mean time to produce perfect copies of the same document is 52 minutes for the group using Word and 44 minutes for the group using Pages. The sums of squares for Word is 22 and for Pages, it is 26.
What is the research design?
Independent groups
Matched subjects
Repeated measures
Non-experimental (observational)
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A computer software company wishes to know whether Microsoft’s Word is better than Apple’s Pages. Eight equally proficient microcomputer operators are randomly divided into two equal groups. One group is given Word and the other is given Pages. The mean time to produce perfect copies of the same document is 52 minutes for the group using Word and 44 minutes for the group using Pages. The sums of squares for Word is 22 and for Pages, it is 26.
What is the measurement scale for the dependent variable?
at least ordinal and possibly interval
at least interval and possibly ratio
definitely ratio
definitely nominal
definitely interval and not ratio
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A computer software company wishes to know whether Microsoft’s Word is better than Apple’s Pages. Eight equally proficient microcomputer operators are randomly divided into two equal groups. One group is given Word and the other is given Pages. The mean time to produce perfect copies of the same document is 52 minutes for the group using Word and 44 minutes for the group using Pages. The sums of squares for Word is 22 and for Pages, it is 26.
What type of measure is being taken?
self-report/rating
behavioural
physiological
self-report/forced-choice
self-report/semantic differential
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A computer software company wishes to know whether Microsoft’s Word is better than Apple’s Pages. Eight equally proficient microcomputer operators are randomly divided into two equal groups. One group is given Word and the other is given Pages. The mean time to produce perfect copies of the same document is 52 minutes for the group using Word and 44 minutes for the group using Pages. The sums of squares for Word is 22 and for Pages, it is 26.
What are the two independent estimates of the population variance?
6.17 and 6.89
7.33 and 8.66
6.99 and 7.13
7.34 and 8.52
12.65 and 14.68
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A computer software company wishes to know whether Microsoft’s Word is better than Apple’s Pages. Eight equally proficient microcomputer operators are randomly divided into two equal groups. One group is given Word and the other is given Pages. The mean time to produce perfect copies of the same document is 52 minutes for the group using Word and 44 minutes for the group using Pages. The sums of squares for Word is 22 and for Pages, it is 26.
What is the pooled variance in this example?
4
8
12
16
96
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A computer software company wishes to know whether Microsoft’s Word is better than Apple’s Pages. Eight equally proficient microcomputer operators are randomly divided into two equal groups. One group is given Word and the other is given Pages. The mean time to produce perfect copies of the same document is 52 minutes for the group using Word and 44 minutes for the group using Pages. The sums of squares for Word is 22 and for Pages, it is 26.
What is the variance of each of the two distributions of means?
1
2
6
8
3
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