What is the advantage of a double-blind experimental design?
a. The effects of extraneous variables are not eliminated but they are spread evenly across groups.
b. It makes the demand characteristics the same for participants in all conditions and eliminates the possibility that the experimenter unintentionally signals the expected outcome to the participants.
c. It increases confidence that the data are being interpreted in an unbiased manner.
d. It makes it impossible for the participant to discover the hypothesis and assures that the data are interpreted in terms of what actually happened, not in terms of what should have happened.
A level 1 heading should be
a. flush left with upper and lower case letters
b. flush left, boldface, with upper and lower case letters
c. centered, boldface, in upper and lower case letters
d. flush right, boldface, all upper case letters
A weakness of the mixed methods approach is that
a. divergent aspects of a phenomenon cannot be studied.
b. it can be difficult to connect theory to practice.
c. it is an old methodology with few people using it.
d. because expertise is needed to two areas it can be difficult to find people qualified to perform both types research.
High quality research has which of the following characteristics?
a) difficult to replicate
b) typically influenced by special interest groups
c) is linear in nature
d) based on the work of others
In some experiments, demand characteristics are controlled by making sure neither the participant nor the experimenter knows what condition(s) the participant experienced until the data are collected and analyzed.
This is called a(n) procedure.
a. counterbalancing
b. double-blind
c. treatment-placebo
d. matched ignorance
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