Problem statement: Kuya investigated the effects of growth light on plant growth
ID: 3054824 • Letter: P
Question
Problem statement: Kuya investigated the effects of growth light on plant growth. He collected ten plants. They were exposed to a growth light for two weeks and growth was measured. Then he increased the growth light’s photometric quantity for the next two weeks and measured the growth. He did it one more time for two more weeks. Will the growth be significantly different with each increased photometric quantity period?
The appropriate test for this problem is:
t test for one sample
t test for dependent samples
t test for independent samples
one-way ANOVA
repeated measurements ANOVA
correlation analysis
linear regression
multiple regression
one-variable chi-square
two-variables chi-square
Problem statement: A sample of college students was randomly selected to see if students retained more information from reading a 19th century novel or by listening to its tape recorded version. Students read the novel first, administered a 20-point quiz, then given a week’s rest before listening to the tape recorded version and the quiz. Will the scores be significantly different?
The appropriate test for this problem is:
t test for one sample
t test for dependent samples
t test for independent samples
one-way ANOVA
repeated measurements ANOVA
correlation analysis
linear regression
multiple regression
one-variable chi-square
two-variables chi-square
Explanation / Answer
(a)
Correct option : repeated measurements ANOVA:
Studies that investigate changesin mean scores over three or more time points. Here, mean growth of plants is studied for 3 time points.
(b)
Correct option:
t test for dependent sampls
EXPLANATION:
A statistical procedure to determine whether the mean differences between two sets of observations is 0. Here, sample of students istested before and after a week's rest.
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