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LuckyWell [14K]
1 year ago
7

One of the following experiments has an internal validity problem and the other does not. First, identify which experiment DOES

NOT have an internal validity problem. Next, for the remaining experiment, identify at least one problem that threatens the internal validity.a) A cognitive psychologist believes that people learn better when they spread out their studying over several days, so she creates a study with three groups of participants. Each group studies the same list of 120 Chinese vocabulary words (none of the participants had studied Chinese before). One group studies the words for 20 minutes on the first day. The second group studies the words for 20 minutes on the first and second days. The last group studies the words for 20 minutes on the first, second, and third days. On the fourth day, all of the participants are tested on how well they have learned the Chinese vocabulary words. The people in the last group scored the best, so the researcher concludes that distributed studying does improve people’s ability to learn.b) A human factors psychologist is comparing visibility features for automobiles. (Human factors psychologists study how humans interact with the material world.) He plans to test whether drivers will avoid obstacles behind their cars more effectively when the car is equipped with an enhanced rearview mirror, a rear video camera system, or an object detector that sets off a buzzer alarm. He places a sample of 25 drivers into each of three cars. The cars are identical except for their object detectors. The drivers spend 1 hour familiarizing themselves with their vehicles and their object detectors by running through a set of drills on a closed driver’s course. During a test phase, the researcher places a set of objects behind each driver. The test objects range in height, color, and movement. Each driver attempts to back up his or her car while avoiding each of the test objects. Each object is presented three times each. The psychologist finds that, on average, drivers respond more accurately to the rear camera video system compared to the rearview mirror or the buzzer alarm.
Social Studies
1 answer:
grigory [225]1 year ago
4 0

Answer:

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Explanation:

asdfasdfmna sdf ansdf masdfmnnasd,f  adsnfn akjsdfnaksjdfaksd

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According to erikson, the period during which teenagers seek to determine what is unique and distinctive about themselves is cal
Luba_88 [7]
The correct answer is Identity vs. Role Confusion.

<span>Identity vs. Role Confusion is part of Erikson's theory of the stages of psychosocial development. This stage typically occurs during adolescence (age 12-18). It involves teenagers seeking a distinct personal identity through exploring their unique goals, aspirations, beliefs and values. Adolescents experiment with different types of fashion, musical preferences, friend groups, etc., to "find themselves" and form a social identity. </span>
6 0
1 year ago
The question "What will I have to give up?" relates to . The question "What will I gain in return?" relates to . The amount of m
babymother [125]

Answer:

immediate cost, future benefit, salary, net benefit

Explanation:

The question "What will I have to give up?" relates to <u>immediate cost</u>.

The question "What will I gain in return?" relates to <u>future benefits</u>.

The amount of money a worker might make on a job in a year is a <u>salary</u>.

The potential earnings of becoming a doctor minus the cost of going to medical school is the <u>net benefit</u>.

Immediate cost is the money spent on doing something or acquire an asset while future benefits is the potential for a venture, an activity or asset to contribute to financial gains in the future.

Salary  is a fixed regular payment, mostly paid on a monthly basis but often expressed as an annual sum, made by an employer to an employee.

Net benefit is the summation of all the benefit accrued from a venture minus all expenses, it means the present value of the Covered Payments net of all expenses.

8 0
2 years ago
Read 3 more answers
When Amir took his first ride on the big ferris wheel, he looked down at the fairground 100 feet below and became aware of his h
Artemon [7]

Answer:

B) the two factor theory.

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When Amir took his first ride on the big ferris wheel, he looked down at the fairground 100 feet below and became aware of his high level of physiological arousal. Suddenly he felt frightened. The sequence of events in Amir's emotional experience reflects THE TWO FACTOR THEORY

6 0
2 years ago
Professor Morooka works 60 hours a week for 9 months of the year. During this time he longs for a break. When he finally gets a
Igoryamba

Answer:

Arousal theory

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Arousal theory of motivation that describe the different optimal level of arousal in different people. This is a fundamental process. It contains the attention and the information process in the arousal theory of motivation.

It is been declare that the psychological level of a person will indicate the arousal level of a person in the performance. The study showed that there are adding a single drop of motivation or subtraction in the level of motivation will indicate the positive and the negative effect on performance.  

Thus professor Morooka is on arousal level that maintains the optimal level of performance.

8 0
2 years ago
A researcher studying income and wealth inequality decides to focus on economic segregation. In addition to observing such featu
IRISSAK [1]

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the long-distance commutes of low-wage service employees.

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Wealth gap is the difference between the richest and poorest citizens living in a geographical location based on the level of their assets and net worth i.e assets minus their debts.

Generally, the information generated by the government based on the wealth gap of its citizens is typically used for formulating economic policies, plan and financial budgets.

Economic segregation includes gated communities, exclusive apartment buildings and wealth inequality that combines to increase the wealth gap between the poor and rich people.

In this scenario, a researcher studying income and wealth inequality decides to focus on economic segregation. In addition to observing such features of economic segregation as gated communities and exclusive apartment buildings, it would also be a very good idea to include observations and analysis of the long-distance commutes of low-wage service employees to and from their place of work.

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