Experimental Methods And Measures Flashcards
This experimental method generate numerical data that are categorized, ranked, or used to construct graphs and draw statistical conclusions
Quantitative experimental method
This type of experimental method produce results that are not numbers rather it could be words, opinions, observations, or anything else not numerical (cannot be easily quantified). These are more open ended an dexploratory and can be used later to develop a quantitative test
Qualitative experimental method
Research methods that include the quantitative and qualitative results
Mixed research methods
These types of methods are in bias and fact based
Objective measures
These measures are subject to opinion
Subjective measures
This refers to the extent to which studies results are both genuine and generalizable
Validity
Three types of validity
Internal, external, test
This type of validity describes the extent to which we can draw causal conclusions from the study data
Internal
If you cannot conclusively determine that causation explains this relationship we have served our study last what validity?
Internal
An outside factor not being studied but impact both variables under consideration
Confounding variable
This type of validity depends on how much we can minimize confounding variables
Internal validity
This validity refers to the extent to which we can generalize our results in two different experimental situations or real life
External validity
Type of validity which describes how well a research design was able to test what it intended to test
Test validity
This is how well the test covers the full scope of content that the researchers intend to measure
Content test validity
This tells us whether our test actually assesses the construct we assigned it to test
Construct test validity
This describes how well our test correlates with some other well respected criterion, like an established alternate test of the same measure
Criterion test validity
This gives us a good way to determine whether a new test can be trusted
Criterion Test validity
This measures how well our test predicts later scores on some chosen measure
Predictive test validity
The extent to which study results are consistent
Reliability
This answers the question if we do the study again, will we see similar results?
Reliability
The extent to which measurements agree within an experiment. How close the data points are
Precision
The extent to which measurements agree with standard values. The closer a result is to the correct value, the more ________ that result is
Accuracy
A reliable experiment is expected to produce what results?
Precise results
A valid experiment is expected to produce what results?
Accurate results
Repeating the experiment yields inconsistent values. Not close to true value.
Unreliable an invalid experimental study
Involves data points that are closely clustered around an inaccurate value
Reliable and invalid experimental study
In this scenario our results are all over the place but the average of the wildly inconsistent results is close to the standard measure
Unreliable and valid
This method collect large amount of data and often take the form of questionnaires
Survey methods
This scale consist of a statement, followed by continuum of possible responses from 1 to 5 or from 1 to 10, Usually ranging from strong agreement with a statement to strong disagreement.
Likert scales
Is a form of self report and often use Likert scales
Questionnaires
Biases Inherent to survey methods
Self reporting bias
Tendency of respondents to answer in a way that they think makes them look socially successful.
Social desirability bias
The tendency to answer “yes” when uncertain
Acquiescence bias
