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“Some preliminaries (page 22) The second feature is definitely not open to disregard. This is the requirement, central to the construction of our INTRODUCTION, to substantiate all factual assertions. A factual assertion is simply anything that could prompt your reader to ask 'who says?'. Anything that could be re-written as 'it was found that' or 'it was argued that' or 'it was claimed that' etc., can be regarded as a factual assertion and requires substantiation. You are expected to tell the reader at least by whom it was found (argued, or claimed) and when. So, if you make a firm statement about any aspect of the psychological universe (however trivial), you must attempt to support it.” — Peter Harris
Some preliminaries (page 22)
The second feature is definitely not open to disregard. This is the requirement, central to the construction of our INTRODUCTION, to substantiate all factual assertions. A factual assertion is simply anything that could prompt your reader to ask 'who says?'. Anything that could be re-written as 'it was found that' or 'it was argued that' or 'it was claimed that' etc., can be regarded as a factual assertion and requires substantiation. You are expected to tell the reader at least by whom it was found (argued, or claimed) and when. So, if you make a firm statement about any aspect of the psychological universe (however trivial), you must attempt to support it.