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Across 2. anything that can change and is feasible and ethical to measure. 4. an experimental procedure in which the research participants are ignorant about whether they have received the treatment or a placebo. (3 Words) 6. a statistical procedure for analyzing the results of multiple studies to reach an overall conclusion. (2 Words) 9. Separating participants into experimental and control groups by chance, thus minimizing preexisting differences between the different groups (2 Words) 10. An experimental method in which both the research participants and the research staff are ignorant about whether the research participants have received the treatment or a placebo. (3 Words) 11. A non-experimental technique in which one individual or group is studied in depth in the hope of revealing universal principles (2 Words) 12. Experimental results caused by expectations alone (2 Words) 13. the tendency to believe after learning an outcome that one would have foreseen it (2 Words) 14. a non-experimental technique of observing and recording behavior in naturally occurring situations without trying to manipulate and control the situation. (2 Words) 15. The strength of the relationship between two variables or groups in an experiment (2 Words) 16. A non-experimental technique for obtaining the self-reported attitudes or behaviors of a particular group, usually by questioning a representative, random sample of the group 19. In an experiment, the outcome that is measured (2 Words) 20. Giving potential participants enough information about a study to enable them to choose whether they wish to participate (2 Words) 24. A symmetrical, bell-shaped graph that describes the distribution of many types of data; most scores fall near the mean and fewer scores lie near the extremes (2 Words) 25. in an experiment, a factor other than the factor being studied that might influence a study’s results. (2 Words) 26. The arithmetic average of a distribution, obtained by adding the scores and then dividing by the number of scores

Down 1. A selection where each member had an equal chance of inclusion. (2 Words) 2. The extent to which a test or experiment measures or predicts what it is supposed to 3. A carefully worded statement of the exact procedures used in a research study (2 Words) 4. A computed measure of how much scores vary around the mean score (2 Words) 5. Perceiving a relationship where none exists, or perceiving a stronger than actual relationship (2 Words) 7. How likely it is that a result occurred by chance, assuming there is no difference between the populations being studied (2 Words) 8. In an experiment, the factor being manipulated and whose effect is being studied. (2 Words) 17. A research method in which an investigator manipulates one or more factors to observe the effect on some behavior or mental process 18. All those in a group being studied from which random samples may be drawn 19. The post-experimental explanation of a study, including its purpose and any deceptions, to its participants 21. the middle score in a distribution; half the scores are above it and half are below it. 22. The most frequently occurring score(s) in a distribution 23. The difference between the highest and lowest scores in a distribution