Question

1. A factorial design is one in which
………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

2. The number of times each experimental condition is observed in a
factorial design is known as

……………………………………………………………………………………………

3. The best way to control for extraneous variables in research
studies is

……………………………………………………………………………………………………………………………………………………………………………………………………

4. Control in experimental research is BEST described as an attempt
to

……………………………………………………………………………………………………………………………………………………………………………………………………

5. If we have 2 factors and two levels per factors, what kind of
experiment is this?

……………………………………………………………………………………………………………………………………………………………………………………………………

6. What information is given in the factorial design
notation,

Answer #1

Design a full-factorial experiment.* Use one response and at
least 2 factors, each factor with at least 2 levels.
a. Describe the response and
factor variables (e.g., what type of data are they, what are their
levels or value ranges).
b. What is the unit of
observation?
c. Describe the population,
the sampling technique (how will you ensure random selection of
units), and the sample and cell (treatment combinations) sizes.
d. Will you have replications or
repetitions?
e. Are there...

The
question concerning Layout the design for two between subject
experiment involving an experimental group and a control group, and
(b) a factorial design with three independent variables that have
3, 2, and 2 levels respectively. Where did the expert got his
reference from?

1. Observation research must be systematic, not casual or
haphazard, in its design. True or False
2. An observation checklist should possess a high degree of
precision in defining relevant facts to be observed. True or
False
3. When the observer’s presence is known by the participant, but
the purpose of the observation is unknown, this is an example of
partial concealment. True or False
4, When a researcher chooses to manipulate an independent
variable for an experiment, this is...

TRUE / FALSE to the questions below
1. One of the experimental
researcher's main goals is to identify the possible extraneous
variables other than the treatment that may affect the results of
the experiment and to eliminate or control them.
2.
Blinding refers to the control of subjects' knowledge of whether or
not they have been
given an experimental treatment, such as not informing the subjects
whether they have the diet or regular formulation of a cola
drink....

Tom designed a complete factorial experiment with 2 factors. One
factor had 4 levels, the other had 5 levels. For each combination
of levels of factors, there were 6 replicates.
A) In the ANOVA table associated with this design, what
were the degrees of freedom of the interaction?
a. 7
b. 12
c. 20
d. 24
e. 30
B) Suppose we want to test the significance of the main
effect of the factor with 4 levels. What is the distribution...

#1. Which of the following scenarios would be best described as
having a true experimental research design?
A
Research Question: Do a smaller proportion of graduates attend
graduation when it is held on a Sunday compared to Saturday?
Design: Randomly select 40 graduates the year it is held on a
Saturday and record how many attend graduation. Do the same thing
on a year the ceremony is held on a Sunday.
B
Research Question: Is a new vaccination effective at...

Question 1:
a) what experimental design approaches are used to prevent
pseudoreplication.
b) If, after the research is completed, the researcher obtains a
p-value of 0.06 What does this p- value signify? What should they
do? Is there a way to salvage this experiment?
c) What does it mean when we say that a result is ‘statistically
significant’?
please explain it briefly

2. To determine if using a study
guide is an effective tool for improving students’ understanding of
statistical concepts, students either received (based on random
assignment) a study guide or no study guide and subsequently took a
test examining their knowledge on various statistical concepts. In
this study, the presence/absence of the study guide is:
a. The independent variable
b. The dependent variable
c. The extraneous variable
d. The random variable
3. The above study (in question 2)
can best be described as:
a. An experiment
b. A...

You decide to do a 2 x 2 between subjects factorial design to
examine how feedback on Facebook posts influence well-being. You
are studying active (multiple posts a day) Facebook users.
There are two independent variables, each with two levels. IV A
is Facebook "likes." For two days, participants will receive zero
"likes" on all their Facebook posts or between 25-50 "likes" on all
posts. IV B is Facebook comments. For two days, participants will
receive no comments on all...

11) a. In a designed experiment, what are the
experimental units?
b. If the experimental units are humans, what term is often used
in place of experimental unit?
a. Choose the correct answer below.
A.
The group receiving placebo
B.
The group receiving the specified treatment
C.
The individuals or items on which the experiment is performed
D.
The experimental conditions
12) In a designed experiment, there is one factor
with four levels. How many treatments are there?
Choose the...

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