Internal Validity

internal validity

validity that needs to be established first

external validity

validity that is established 2nd

internal validity

free of confounding = higher ???

manipulation check

evaluates how well the experimenter manipulated the experimental situation

manipulation check

determines whether subjs followed directions and have appropriately affected our treatments

wrong stat test

MISTAKES THAT COULD PRODUCE THREAT:

using a t-test to analyze ordinal data

improper use of stat test

MISTAKES THAT COULD PRODUCE THREAT:

multiple t-test

wrong conclusion

MISTAKES THAT COULD PRODUCE THREAT:

reporting p = .07 as a trend

experimental procedure

always review the ____________ after experiments to determine if

- any extra variables?

- did testing conditions change?

- are there any unplanned changes that could alter response?

explanations

when interpreting results, be open to other potential _________ for your findings

researcher themselves

it is better if ________________ are the one to discover any substantial problems in researcher's experiment; exp reader = find them and think less of ur abilities

discussion section

section where problems should be discussed openly

meaningful

findings can either be statistically sig or not sig, but MUST be _______________ (what findings mean for its application in IRL setting)

external validity

have applications in settings = higher ???

continuum

external validity is a ___________ (some experiments are more externally valid than others)

internally valid / replicable

requirements for external validity < experiment must be (2/)