a researcher is interested in whether using mental imagery can help people remember specific details when…

a researcher is interested in whether using mental imagery can help people remember specific details when given information. to conduct the experiment, the researcher selects the treatment group by placing numbered slips of paper in a hat and randomly selecting half of the numbers, making sure to mix the slips between each selection. which component is missing from the researchers process? the researcher did not use randomization to select the treatment and control groups. the researcher did not randomly choose the participants for the experiment. the researcher did not label the participants with numbers before placing the numbers in a hat. the researcher did not use enough random selections to make the correct number of groups.

a researcher is interested in whether using mental imagery can help people remember specific details when given information. to conduct the experiment, the researcher selects the treatment group by placing numbered slips of paper in a hat and randomly selecting half of the numbers, making sure to mix the slips between each selection. which component is missing from the researchers process? the researcher did not use randomization to select the treatment and control groups. the researcher did not randomly choose the participants for the experiment. the researcher did not label the participants with numbers before placing the numbers in a hat. the researcher did not use enough random selections to make the correct number of groups.

Answer

Brief Explanation:

In a proper experimental design in psychology (where this research on memory and mental imagery falls), random selection of participants for the experiment as a whole is crucial for generalizability and to avoid bias. Randomly splitting a pre - selected group into treatment and control groups (as done here) is not enough if the initial participants weren't randomly chosen from the population of interest.

Answer:

The researcher did not randomly choose the participants for the experiment.