Psy 516 Ch 7 Already Graded A+
Estimation The goal of any scientific measure is to get as close to the true value of our behavior or DV
of interest as possible
Observed values Values resulting from observation and recording procedures used to collect the data
for a study
True values Value...
Estimation ✅The goal of any scientific measure is to get as close to the true value of our behavior or DV
of interest as possible
Observed values ✅Values resulting from observation and recording procedures used to collect the data
for a study
True values ✅Values resulting from special observation and recording procedures that are somewhat
different from those used to collect the data being evaluated and that involve special efforts to minimize
error
The special steps depend on the nature of the behavior and of the observations
Accuracy ✅The extent to which observed values approximate to the events that actually occurred
Requirements for evaluating accuracy: ✅The data must represent real/physical events
It must be possible to measure these events directly
Reliability ✅The extent to which the relationship between observed values and the events that actually
occurred is stable
Think consistency, if the results are different every time under the same circumstances we do not have a
reliable measure.
Validity ✅The extent to which observed values represent the events they are supposed to represent
and that will be the focus of interpretation
Believability ✅The extent to which the investigator can, in the absence of direct evidence, convince
others to believe that the data are good enough for interpretation.
I.E., There is a flaw somewhere
E.G., PEAK studies
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