Generalizations are briefly depicted.

This question is emphasized: We can always generalize safely from a sample to a general population, We can always generalize safely from a sample to a target population, We can never generalize safely to a general population, or We can only generalize safely to the population from which we have taken the sample.

Experiment

This job lists characteristics of an experiment.

Research methods are modeled.

This question is explained: Experimental design, compared with naturalistic observations, _____________ (a) is always a better procedure, (b) is generaly preferred, although it depends upon the nature of the question, (c) generaly yields less interpretable results, (d) is always more difficult to carry out

Research Methods

An experimenter hopes to find that a predicted variation __________ (a) leads to accepting the null hypothesis, (b) reduces the difference between groups, (c) increases the within-groups varition, (d) is due to the experimental manipulation Please advise answer & why - thanks!

Research Methods

Factorial designs have the advantage of allowing us to evaluate ___________ (a) the interaction between two or more independent variables (b) the same participants under different conditions (c) the same participants under the same conditions (d) the interaction between the independent variable and the dependent variable I believe the answer could be (a) or (d) - but feel (d) is the best choice - please advise correct answer & why ---- thanks so very much!!