Industrial and organizational psychology – Intro to Psychology

Industrial and organizational psychology – Intro to Psychology

Industrial and organizational psychology focuses on two distinct sets of problems. The industrial side involves matching employees to their job and using psychological principles to select employees and evaluate job performance. The industrial side of IO psychology is sometimes referred to as personnel psychology. The organizational side focuses on making workers more productive. In addition, …

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Dopamine hypothesis of schizophrenia – Intro to Psychology

Dopamine hypothesis of schizophrenia – Intro to Psychology

Another hypothesis regarding the biological factors that play a role in schizophrenia is the dopamine hypothesis. This hypothesis suggests that schizophrenia involves excess dopamine activity. One reason this hypothesis came about was from the observation of individuals who overdose on major stimulants like methamphetamine and cocaine. These individuals, if you recall from our lesson on …

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Implicit (non-declarative) memory – Intro to Psychology

Implicit (non-declarative) memory – Intro to Psychology

So Implicit memory is also called non-declarative memory because we can not directly recall this type of memory. Implicit memory is a kind of memory that’s made up of knowledge based on previous experiences such as skills that we preform automatically once you have mastered them. Implicit memory resides outside of our conscience awareness. So …

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General adaptation syndrome – Intro to Psychology

General adaptation syndrome – Intro to Psychology

Thanks Greg! The three stages are what Selye referred to as the General Adaptation Syndrome. To recap, General Adaptation Syndrome consists of three stages. First is the alarm stage. This is when your body first reacts to the stressful or threatening situation. With activation of the sympathetic nervous system and the HPA Axis. The second …

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Ethics in research – Intro to Psychology

Ethics in research – Intro to Psychology

We’ve spent our time talking about research methods. But one crucial aspect we did not discuss in detail is ethics and psychology. It’s important to know that before any study is conducted, whether it’s with humans or animals. It must be approved by a federally mandated committee. For humans, it’s the Institutional Review Board. And …

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Definition of stress – Intro to Psychology

Definition of stress – Intro to Psychology

We define stress as the response to a situation that a person perceives to be overwhelming in that the person does not think he or she can meet the demands of the situation. The interesting thing to note here, this is the perceived inability to meet the demand of the situation facing them. For example, …

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Yerkes-Dodson law – Intro to Psychology

The next model we’re going to discuss, is the Yerkes-Dodson Law. So the Yerke-Dodson Law states that moderate levels of arousal, lead to optimal performance. So think back to our lesson on consciousness, where we talked about our levels of awareness. At one side of the continuum, we were unconscious, so in a coma, and …

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IQ score distribution – Intro to Psychology

IQ score distribution – Intro to Psychology

Now, even though there are limits to what IQ tests can tell you, they’re widely used and can be pretty useful especially for educators. The popularity of IQ tests have been able to give us extensive knowledge of the range of IQ scores. Let’s look at what IQ scores look like for the entire population. …

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First IQ tests – Intro to Psychology

First IQ tests – Intro to Psychology

As important of an idea as intelligence is, it’s hard to both define, and measure. But it has been measured, and tested for over 100 years. The first person to do this was Alfred Binet in 1903. He was looking for a measure that he could give to all students in the parish school district …

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DSM-5 – Intro to Psychology

DSM-5 – Intro to Psychology

In the Unites States historically, the main source for diagnosing mental disorders has been the Diagnostic and Statistical Manual or the DSM. And this is published by the American Psychiatric Association. This manual uses a combination of scientific evidence and clinical observations to determine what constitutes diagnosis of a particular disorder. The DSM defines mental …

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