PSYC217 - iClicker (Ch. 4, 7, 8, 12, 15, Epistemology)

Over the past 60+ years, human knowledge of the universe has increased drastically as we've sent probes farther and farther into space. Our knowledge will continue to grow with advancing technology. This best represents which epistemological position?

Critical realism

Which threat to internal validity did adding the control series help to address?

History - Something happens in the world at the same time as the onset of treatment & therefore could have caused the effect

In a true experiment, a researcher always needs to have

Random assignment

Dr. Strange is conducting research. He uses his phone book, flips to a page, closes his eyes and points to a name with his finger. he repeats this process 1000 times. This is closest to ________.

Using this technique, there is ________ sampling bias.

simple random sampling, very likely some

Which of the following cannot test hypotheses?

Interviews

Dr. Grayson is interested in personality and aging. A ________ study could show how extraversion differs at different ages, while a ________ study could show how extraversion changes as people age.

Two of the above

Which characteristic makes it impossible to use a true experimental design?

Participants can choose whether to sign up or not.

Regression to the mean would be a plausible explanation for the findings if…

A and B