Major Movements in Psychology - Psychology as a Science
10 important questions on Major Movements in Psychology - Psychology as a Science
Wha is the purpose of psychological research?
Is psychological research ever completely objective?
What is a variable?
Operationalizing our traits of interest is turning them into variables. Having translated our traits of interest into numerical variables, we can now use mathematics to calculate the relationships between the variables.
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Do all psychological studies use numbers?
In qualitative research a smaller number of subjects are observed or interviewed intensively. The observations are recorded not in numbers but in a long, detailed narrative.
How do the methods of the social sciences differ from those of the hard sciences?
Why is sample selection important?
What are statistics and how do they work?
Measures of covariation assess the degree to which two or more variables change in relation to each other. When the distribution of scores is concentrated toward one end of the scale, we say there is a skewed distribution. In a normal distribution the majority of scores are in the middle with a few scores moving out toward the far ends of either side. When the distribution is skewed, the mean, median, and mode seperate from each other.
What is the difference between the median and the mean and why does it matter?
What are the critical concepts one needs to know when interpreting the results of a study?
Internal validity refers to the integrity of the study methods.
External validity refers to the extent to which the results can be applied to a larger population.
In general, internal validity is more important than external validity.
What does a study confound mean?
to confound = verwarren
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