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PSYC 012 CHAPTER 10:INTRODUCTION TO SIMPLE EXPERIMENTS EXAM WITH CORRECT ACTUAL QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST 2024 – 2025 ALREADY GRADED A+ $14.99
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PSYC 012 CHAPTER 10:INTRODUCTION TO SIMPLE EXPERIM
PSYC 012 CHAPTER 10:INTRODUCTION TO SIMPLE EXPERIM
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PSYC 012 CHAPTER 10:INTRODUCTION TO SIMPLE EXPERIMENTS EXAM WITH CORRECT ACTUAL QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST 2024 – 2025 ALREADY GRADED A+
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PSYC 012 CHAPTER 10:INTRODUCTION TO SIMPLE EXPERIM
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PSYC 012 CHAPTER 10:INTRODUCTION TO SIMPLE EXPERIM
PSYC 012 CHAPTER 10:INTRODUCTION TO SIMPLE EXPERIMENTS EXAM WITH CORRECT ACTUAL QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST 2024 – 2025 ALREADY GRADED A+
PSYC 012 CHAPTER 10:INTRODUCTION TO
SIMPLE EXPERIMENTS EXAM WITH
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST 2024 – 2025 ALREADY GRADED A+
Bruno is testing a new diet plan to see if it is effective in reducing the frequency of
eating cancer-causing foods. Bruno creates two groups of people—one that will
receive his new diet plan and one that will receive a traditional diet plan.
Bruno knows that culture influences food choices and wants to ensure that each
group has an equal representation of different ethnicities. He puts the names of
all of the participants from one ethnicity into a hat and draws out names, placing
half of them in one group and half in the other. He does the same for each of the
ethnic groups represented in his participant pool. Bruno then gives the two
groups their different diet plans and measures participants' eating habits 3
months later.
Which of the following descriptions are applicable to Bruno's experiment? -
ANSWERS-
,Fill in the blanks to complete the passage about experimental groups. - ANSWERS-
When an independent variable is manipulated, the experiment uses several
different groups. A [control] group is a group that is not changed or manipulated
in any way. Any group in which something is changed or altered is known as a
[treatment] group. A group in which participants are given an inert treatment is
known as a [placebo] group. All of these groups can help reduce alternative
explanations for experimental results, or [confounds].
Fill in the blanks to complete the passage about an example of a researcher who
is establishing groups in an experiment. - ANSWERS-Dr. Keller wants to test the
effect of a new antianxiety medication. He recruits a group of anxious patients
and randomly assigns them to two groups. The first group will receive his new
medication and the second group will receive a sugar pill. The first group is called
a [treatment group]. The second group is called a [placebo group]. Dr. Keller
makes sure that length of treatment is a [control variable] by treating both groups
for the same length of time.
Participants in an experiment are given the same list of words to study for 3
minutes and then, after a delay, are asked to recall as many words as possible
from the list. The length of the delay is manipulated to be 2 minutes, 5 minutes,
or 10 minutes. Because different groups need different amounts of time,
researchers assign the first 25 participants who arrive to the 10-minute group, the
next 25 to the 5-minute group, and the final 25 to the 2-minute group.
What kind of confound does this create? - ANSWERS-selection effect
, Identify the true and false statements about effect sizes. - ANSWERS-True
Statement(s):
The greater the difference between two conditions, the larger the effect size.
Effect sizes are relevant to evaluating the causal criterion of covariance.
False Statement(s):
Both d and r use the original units of measurement.
The correlation coefficient r is always preferred over d for reporting results.
Fill in the blanks to complete the passage about experiments that use different
participants for the different conditions. - ANSWERS-Experiments that compare
different participants who are placed in different conditions are known as
[independent-groups] designs. There are two basic forms of this design. The first
is the [posttest-only] design, in which participants are tested on the dependent
variable only once after the manipulation. The second is the [pretest/posttest]
design, in which participants are tested on the dependent variable before and
after the manipulation.
Fill in the blanks to complete the passage about an example of an experimental
design that establishes all three causal criteria. - ANSWERS-Sonia wants to
examine the impact of phone calls versus texting on friendship quality. She
carefully designs her study to establish all three causal criteria. She randomly
assigns participants to either only call their best friend for 2 days or only text their
best friend for 2 days. Using random assignment ensures that the participants in
the phone call and texting conditions are not systematically different, which
establishes [internal validity].
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