Question 1 (1 point) Question 1 UnsavedAn example of a ex post facto study is:Question 1 options:

Question 1 (1 point) Question 1 UnsavedAn example of a ex post facto study is:Question 1 options:The researcher randomly assigns participants into drug treatment groupsThe researcher has students complete a surveyThe researcher compares adults intelligence based on hair colorThe researcher has preschoolers complete an intelligence testSaveQuestion 2 (1 point) Question 2 UnsavedConcurrent validity indicatesQuestion 2 options:The measure is able to predict the outcomeThe measure is consistently identified by researchersThe measure actually measures what it is reported toThe measure makes logical senseSaveQuestion 3 (1 point) Question 3 UnsavedA researcher conducts a study looking at the relationship between hat size and intelligence. Which of the following might be an extraneous variable?Question 3 options:Hat sizeAgeIntelligenceHair colorSaveQuestion 4 (1 point) Question 4 SavedA researcher gives a group of adults chocolate everyday at 3pm and measures their energy level and compares it to the energy level of another group who was not given chocolate. Which of the following is the dependent variableQuestion 4 options:AdultsChocolateEnergy levelTime in the afternoonSaveQuestion 5 (1 point) Question 5 UnsavedA researcher gives a group of adults chocolate everyday at 3pm and measures their energy level and compares it to the energy level of another group who was not given chocolate. Which of the following is the independent variableQuestion 5 options:AdultsChocolateEnergy levelTime in the afternoonSaveQuestion 6 (1 point) Question 6 UnsavedThe main purpose(s) of random assignment is Question 6 options:create groups as equal as possible before the manipulation of the IVreduce the effects of nuisance/extraneous variablesdistribute the timing of the treatment equallyA and BSaveQuestion 7 (1 point) Question 7 Unsaved”Dogs are smarter than cats” is an example of what type of research hypothesisQuestion 7 options:Nondirectional research hypothesisPredictor research hypothesisNonpredictor research hypothesisDirectional research hypothesisSaveQuestion 8 (1 point) Question 8 UnsavedInferential statistics are used toQuestion 8 options:Collect the dataSummarize the dataInterpret the dataDraw conclusions about statistical effects of the studySaveQuestion 9 (1 point) Question 9 UnsavedA t-test is used toQuestion 9 options:Compare the mean of two groupsCompare the mean of three groupsDetermine the magnitude of the IV’s effectDetermine the relationship between two variablesSaveQuestion 10 (1 point) Question 10 UnsavedThe _____ tells you the average while the ____ tells you the most commonQuestion 10 options:Median, meanMedian, modeMean, medianMean, modeSaveQuestion 11 (2 points) Question 11 UnsavedExplain the difference between an Independent Variable and a Dependent VariableQuestion 11 options:Blank # 1Spell check Blank # 2Spell check SaveQuestion 12 (3 points) Question 12 Unsaved Give an example of a research hypothesisQuestion 12 options:Blank # 1Spell check Blank # 2Spell check Blank # 3Spell check SaveQuestion 13 (3 points) Question 13 UnsavedHow might you operationally define ‘happiness’?Question 13 options:Blank # 1Spell check Blank # 2Spell check Blank # 3Spell check SaveQuestion 14 (2 points) Question 14 UnsavedGive an example of an inferential statistic and an example of a descriptive statistic.Question 14 options:Blank # 1Spell check Blank # 2Spell check